The Department of Census and Statistics (DCS) started to conduct its series of Annual Survey of Manufacturing Industries(ASMI) in 1979 with the reference year as the previous year 1978. The frame of this survey was restricted to manufacturing establishments registered with the ministry of industries and the state owned industrial establishments.(i.e. Public Corporations, Departmental undertakings, Govt. owned Business undertakings). The last survey of this series was carried out in 1982. After the Census of Industry conducted in 1983, the ASMI was replaced by the Annual Survey of Industries(ASI) covering Mining and Quarrying, Manufacturing and Generation and Distribution of Electricity, Gas and Water. The Industrial frame generated from the Census of Industry 1983 was used to conduct the series of Annual Survey of Industries from 1984 to 2003.The frame of the new series is the register of industrial establishments which is a by product of Census of Industry - 2003 / 2004. This survey is the 21th of the ASI series, conducted in 2006 and the reference period is 2005. The report contains the important industrial indicators relevant to all establishments with 5 or more persons engaged.
The Objectives of the Annual Survey of Industries are:
1. To provide indicators of the performance and the structure of the industrial sector.
2. To update the list of industrial establishments already available.
Kind of Data
Sample survey data [ssd]
Unit of Analysis
Statistical unit of ASI is the establishment which is defined as an unit engaged in the single or related activities of Mining and Quarrying, Manufacturing and Generation and Distribution of Electricity, Gas and Water in one location under a single ownership or control. However, industrial enterprises which are engaged in production of more than one related activity in one location or one activity in several locations were treated as one unit of enumeration whenever no separate records
Any way in the analysis, the ideal definition of the establishment was followed. The information collected of enterprise level was disaggregated into establishment level using the proportion of output. Ancillary units such as warehouses, garages, etc were treated as part of the main establishments.
Version v1.0 (May 2008) - : Full edited dataset, for internal DPD use.
The scope of the ASI is all activities categorized under three industry divisions namely, Mining and Quarrying, Manufacturing and Generation and Distribution of Electricity, Gas and Water of the International Standard Industrial classification revision 3(ISIC) of the United Nations. All private sector establishments, state owned industries and industries coming within the purview of Board of Investment with 5 or more persons engaged have been coverd in this survey.
TRADE, INDUSTRY AND MARKETS 
All industries with 5 or more persons engaged.
Producers and sponsors
Department of Census and Statistics
Ministry of Finance and Planning
Department of Census and Statistics
Source of funds
ASI is predominantly a postal survey . But statistical officers are send to the non responding establishments to get the questionnaires completed.
All industrial establishments with 5 or more persons as in the Census of Industry 2003 / 2004 was the frame (sample population) of ASI.
This sample was stratified according to geographical locations, industrial activity and geographical strata were 25 administrative districts. Industrial activities were defined as the industry group levels, 2 digit level of ISIC. The persons engaged size classes which were defined as 5-9, 10-14, 15-19, 20-24, 25-29, 30-49, 50-99, 100-149, 150-199, 200-299, 300-499, 500-999 and 1000 or more persons engaged were used as the size strata.
There were 21,454 establishments which comprised of 5 or more persons engaged, in the sampling frame. 11% 0f establishments with employment size 5 or more were selected for the sample.
Therefore, 2364 establishments were selected for the sample. The sample was selected systematically within the strata.
(Pl.see the Technical part under the External Resources)
Determination of weights
The final weights for respondent k in stratum h, W hk , is a composite of the base weight, W 1hk', the non-response adjustment W 2hk and the factor to compensate for coverage errors W 3hk such that
W hk = W 1hk * W 2hk * W 3hk
Base weight ( W 1hk )
The base weight is the inverse of the probability of selection.
Non-response weight (W 2hk)
The non-response weight is the ratio the sample size to the total respondents .The establishments that were considered as non-respondents are those refused to participate in the survey.
Sampling Frame Error
The followings are considered as frame problems: Those establishments that cannot be located, those that were closed (they should not be included in the sampling frame), those that are out-of-scope and those that were duplicates and mergers.
Dates of Data Collection
Data Collection Mode
Mail Questionnaire [mail]
The questionnaires and instruction manual along with covering letter were posted to each establishments. However,
the most instances, the statistical officers (SO) of the department compel to visit the non responding establishments
quite a number of times to get the questionnaire completed. The collection of accurate data from industrial
establishment is very tedious and time consuming. Sometimes officers had to visit them several times in order to get
a good response.
Data Collection Notes
The questionnaires and instruction manual along with covering letter were posted to all selected establishments in Colombo, Gampaha and Kaluta districts. But for the first time for the other districts, field officers of the department were sent to the establishments directly to collect the information. For the non-responding establishments of Colombo, Gampaha and Kalutara districts, field officers had to visit quite a number of time to get the questionnaire completed. The collection of accurate data from industrial establishments is very tedious and time consuming. Sometimes officers had to visit them several times in order to get a good response.
Reference period of the survey was the calendar year 2005 (i.e 1st of January to 31st of December). But in some cases, establishments keep records not for the calendar year but for the financial year. (1st of April 2005 to 31st of March 2006) In those situations, financial year data were accepted when there was no significant differences between two 1st quarters of both years (2005 and 2006). Otherwise estimates for the calendar year were accepted.
There were 20 questions in the questionnaire. The first 14 questions were on identification information. Questions 15-18 were on Inputs and Output and question number 19 and 20 were about the Investment and Labor of the establishments. The value of goods moved out, receipt from industrial services done for others and opening and closing stocks of output were collected to compile the gross output. Input were the addition of value of raw materials consumed for the year 2005, (i.e. Cost of raw materials adjusted for stocks ) and the consumption of Electricity, Fuel and Water. Book value at the beginning of the year, gross additions during the year, and Depreciation were canvassed under the four components of fixed assets namely, Land, Buildings and Other Constructions, Machinery and Other Equipments and Transport Equipment. The information on employment and earnings, was collected under two sub categories National and Non-Nationals. The number of mail and female national persons engaged were collected separately, but salaries were canvassed only for the total number of employees. In addition to the above non-national employees and their salaries also were canvassed.
Further information extracted from the report : -
Information on output has been collected on shipment basis. The variables canvassed were the value of products moved out from the establishment, value of stocks of finished goods and receipts from industrial services rendered to others.
a. Value of products moved out
i. Value of products made by the establishment using its own raw materials.
ii. Products made by another establishment using material inputs owned by the establishment,
have been considered, as the products made by the establishment and the following three
situations have been considered as the moving out.
i. sending to another establishment or a person
ii. sending to another branch of the same enterprise
iii. sending abroad
These products were valued at the price at which the producer disposes of his goods to the customer (i.e. producer's price). All duties and taxes which fell on the products when they leave the establishment are included and subsidies recovered are excluded. Price rebates, discounts and allowances on returned goods allowed to the customer have been deducted and any transport charges which may be invoiced to the purchaser or user have been excluded. Products released to other establishments of the same enterprise have been treated as though sold and valued at producer's prices.
b. Stocks of finished goods
The values of stocks of finished goods at the beginning and at the end of the year 2005 have been collected. This consists of all finished goods made by the establishment using their own raw materials and manufactured by another establishment using raw materials owned by this establishment and ready for release. Finished goods held by the establishment which were made from materials owned by others have been excluded. Valuation is in producer's prices.
c. Receipts from Industrial Services
The total value of receipts from
i. Contract and Commission work done for others on materials owned by them,
ii. Repairs and installation work done for others,
iii. Sales of scraps and refuses,
iv. Own account investment work, have been included here.
d. Value of output
The value of output was obtained from the value of shipments and other receipts of Industrial
Services adjusted for changes in the values of stocks of finished goods during the reference
period. Value of Output = (Value of products moved out) +
(Closing stocks of finished goods) - (Opening stocks of finished goods) + (Receipts from Industrial Services)
Information on inputs has been collected covering the costs of
a. Raw materials, parts and components and packing materials (Imported and Indigenous) consumed,
b. Industrial services done by others for the establishment,
c. Fuel, Electricity & Water consumed.
a. Cost of raw materials, parts and components and packing materials
i. Cost of raw materials, packing materials purchased
All material inputs ( Raw materials, parts, components containers and supplies) purchased by the establishment for the production process either in this establishment or in another establishment have been included. All materials have been valued at purchaser's prices. ie. The delivered value at the establishment, including the purchase price transport charges, cost of insurance, all taxes and duties on the goods. Discounts or rebates allowed to the purchaser and the value of packing materials returned to the supplier have been deducted. The value of materials owned by others and received by the establishment for production process have been excluded and material inputs received by the
establishment from other establishments of the same enterprise (not purchased) for processing have been valued as if purchased.
ii. Values of stocks of raw materials and packing materials etc. The opening and closing stocks of all input materials (imported and indigenous) including packing materials which are purchased (or treated as purchased) have been included. The valuation was at purchaser's prices. The stocks of raw material used for
own account work for producing own fixed assets have been excluded.
b. Cost of industrial services done by others
The total cost of
i. Contract and commission work done by others on materials supplied by the establishments and
ii. Repairs and maintenance services provided by others.
c. Fuel, electricity and water consumed
The total of the values of Fuel (LP Gas, Coal and Charcoal, Petrol, Diesel Oil, Furnace Oil,
Kerosene Oil, Firewood and others) Electricity and Water consumed has been included.
Raw Materials Consumed
Raw materials consumed (i.e. actually used) has been computed by adjusting stocks of raw materials to the total value of raw materials (imported and indigenous) and packing materials purchased. Raw materials and packing materials consumed;
= (Raw materials and packing materials purchased (Imported + Indigenous)) +(Opening stocks of materials) - (Closing stocks of materials)
Value of Inputs
The total value of raw materials consumed, cost of industrial services done by others
and Fuel, Electricity and Water consumed have been defined as the value of Inputs.
Value added has been defined as the difference of the value of output and value of inputs i.e. value of Output - value of Inputs.
Fixed Capital Assets
The book value at the beginning of the year, value of gross additions during the year and depreciation of all assets with productive life of one year or more, owned by the establishment (i.e. Land, Buildings, Other Constructions and Land Improvements, Machinery and Other equipment, Transport equipment) have been collected. Leased or rented assets have not been included.
a. Book value at the beginning of the year
This refers to the original cost price of the item less its depreciation, less assets retired and sold up to the beginning of the year.
b. Gross additions to fixed assets during the year
This is defined as the total of the costs of new and second hand fixed assets acquired during the year and alterations, renovations and improvements purchased, cost of own account work less the value of sales of used fixed assets. Valuation of fixed assets acquired from others was to be at the delivered price plus cost of installation and any necessary fees and taxes. Valuation of fixed assets produced own account had to be valued with imputation for own labor and materials used and an allocation for over head costs. Value of sales of used assets were to be at actual amounts realized.
Employment and Earnings
The information obtained on employment related to the number of persons engaged in the establishment.
a. Number of persons engaged
This is defined as the total number of persons who work in or for the establishment, including working proprietors, active partners, unpaid family workers, operatives and all other employees.
b. Working proprietors and active partners
All individual proprietors and partners who are actively engaged in the work of the establishment have been included here.
c. Unpaid family workers
All persons living in the household of the owners and working in the establishment, with out a regular pay, for at least one third of the normal working time of the establishment and non household members who do work without pay were included.
All paid employees who were directly engaged in the production or related activities of the establishment including any clerical or working supervisory personal whose function was to record or expedite any step in the production process have been considered as operatives.
e. Other Employees
All paid employees excluding those covered as operatives are reported here, eg. Managers, Directors, Laboratory and research workers, clerks, typists etc.
f. Wages and Salaries
All payments whether in cash or in kind made by the employers during the year 2005 in connection with the work done to all " employees " had been included here.
i. All regular and overtime cash payments houses and cost of living allowances.
ii. Wages and salaries paid during vacation sick leaves
iii. Taxes and social insurance contribution
iv. Payments in land.
Data processing included the following steps.
1. Accepting the postal questionnaires by the Industrial Division
2. Statistical Officers visit to the non responding establishments to get the questionnaire completed.
3. Preliminary editing and marking codes
4. Entry of data
5. Correct errors in the data through SPSS.
6. Applying weights.
7. Produce tables for final report with clean data.
Department of Census and Statistics
Department of Census and Statistics
Industrial & Construction Division
Department of Census and Statistics
Under the Statistical ordinance, micro data cannot be released with identifications for public use. Procedures are in place to ensure that information relating to any particular individual person, household or undertaking will be kept strictly confidential and will not be divulged to external parties. Information on individual or individual Household/establishment will not be divulged or published in such a form that will facilitate the identification of any particular person or establishment as the data have been collected under the Census/Statistical ordinance,
according to which the information at individual level cannot be divulged and such information is strictly confidential.
The dataset has been anonymized and is available as a Public Use Dataset. It is accessible to all for statistical and research purposes only, under the following terms and conditions:
1. The data and other materials will not be redistributed or sold to other individuals, institutions, or organizations without the written agreement.
2. The data will be used for statistical and scientific research purposes only. They will be used solely for reporting of aggregated information, and not for investigation of specific individuals or organizations.
3. No attempt will be made to re-identify respondents, and no use will be made of the identity of any person or establishment discovered inadvertently.
4. No attempt will be made to produce links among datasets provided by the Department or among data from the Department and other datasets that could identify individuals or organizations.
5. Any books, articles, conference papers, theses, dissertations, reports, or other publications that employ data obtained from the Department will cite the source of data in accordance with the Citation Requirement provided with each dataset.
6. An electronic copy of all reports and publications based on the requested data will be sent to the Department
The following rules apply to micro data released by the Department of Census and Statistics.
• Only the requests of Government Institutions, Recognized Universities, Students, and selected international agencies are entertained. However, the Data users are required to strictly adhere to the terms stipulated in the agreement form.
• All the data requests should be made to Director General (DG) of the DCS as the sole authority of releasing data is vested with the DG of the DCS. The DCS of Sri Lanka reserves sole right to approve or reject any data request made depending on the confidential nature of the data set and intended purpose of the study or analysis.
• Requests for micro data should be made through the agreement form designed by DCS for this purpose (Form D.R.1). The agreement form should be filled in triplicate and the Study/project proposal should accompany the filled agreement form. If requests are made for the micro data of more than one survey, a separate agreement should be signed.
• If the data request is from a student a letter from the respective Dept. Head/Dean/Supervisor, recommending the issue of data, should also be accompanied.
• If the request is approved only 25% of the data file is released at the first stage. The release of the total data file is considered only after reviewing the draft report prepared on the basis of the 25% sample data file.
• The released Data file should be used only for the specific study/Analysis mentioned in the agreement form and shall not be used for any other purpose without the prior approval of the Director General of the DCS. Moreover, Copies of the micro-data file, obtained from the DCS, shall not be given to anyone else without the prior written approval of the Director General of the DCS.
• The draft report of the Study/Analysis should be submitted to the DCS and the concurrence of the DG of the DCS, should be obtained before publishing it. Once published, a copy of the final report should be submitted to the DCS.
[Department : The Department of Census and Statistics (DCS)]
Department of Census and Statistics, Annual Survey of Industries 2006 [ASI 2006], Version 1.0 of the public use dataset May, 2008, provided by the National Data Archive, Data Processing Division, www.statistics.gov.lk
Disclaimer and copyrights
The Department of Census and Statistics bears no responsibility for any results or interpretations arising from the secondary use of the data.
(C) 2008, Department of Census and Statistics
DDI Document ID
Department of Census and Statistics
Minstry of Finance & Planning
Date of Metadata Production
DDI Document version
Version v1.0 (May 2008)
Version 2.0 (August, 2013).DDI and ID numbers edited by World Bank for World Bank Microdata Library.