Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
Description
Source of information
B09. How many years ago did you first start smoking tobacco *daily*?
Imputation and derivation
Imputation
B09. How many years ago did you first start smoking tobacco *daily*?
Others
Security
B09. How many years ago did you first start smoking tobacco *daily*?