National Income Dynamics Study - Coronavirus Rapid Mobile Survey 2020, Wave 3
South Africa, 2020
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Oct 14, 2021
Last modified
Oct 14, 2021
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a8_y - Date of birth (year) (w3_nc_dob_y)
Data file: NIDS-CRAM_Wave3_Anon_V3.0.0.dta
Overview
Valid:
6130
Invalid:
1968
Minimum:
1920
Maximum:
9999
Type:
Discrete
Decimal:
0
Start:
29
End:
32
Width:
4
Range:
1920 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1920 | 1 |
0%
|
|
| 1928 | 1 |
0%
|
|
| 1930 | 6 |
0.1%
|
|
| 1931 | 1 |
0%
|
|
| 1932 | 10 |
0.2%
|
|
| 1933 | 4 |
0.1%
|
|
| 1934 | 6 |
0.1%
|
|
| 1935 | 6 |
0.1%
|
|
| 1936 | 4 |
0.1%
|
|
| 1937 | 7 |
0.1%
|
|
| 1938 | 5 |
0.1%
|
|
| 1939 | 9 |
0.1%
|
|
| 1940 | 15 |
0.2%
|
|
| 1941 | 16 |
0.3%
|
|
| 1942 | 14 |
0.2%
|
|
| 1943 | 17 |
0.3%
|
|
| 1944 | 24 |
0.4%
|
|
| 1945 | 23 |
0.4%
|
|
| 1946 | 26 |
0.4%
|
|
| 1947 | 26 |
0.4%
|
|
| 1948 | 27 |
0.4%
|
|
| 1949 | 24 |
0.4%
|
|
| 1950 | 27 |
0.4%
|
|
| 1951 | 33 |
0.5%
|
|
| 1952 | 53 |
0.9%
|
|
| 1953 | 35 |
0.6%
|
|
| 1954 | 39 |
0.6%
|
|
| 1955 | 48 |
0.8%
|
|
| 1956 | 55 |
0.9%
|
|
| 1957 | 52 |
0.8%
|
|
| 1958 | 51 |
0.8%
|
|
| 1959 | 43 |
0.7%
|
|
| 1960 | 70 |
1.1%
|
|
| 1961 | 47 |
0.8%
|
|
| 1962 | 72 |
1.2%
|
|
| 1963 | 67 |
1.1%
|
|
| 1964 | 64 |
1%
|
|
| 1965 | 58 |
0.9%
|
|
| 1966 | 55 |
0.9%
|
|
| 1967 | 53 |
0.9%
|
|
| 1968 | 60 |
1%
|
|
| 1969 | 94 |
1.5%
|
|
| 1970 | 103 |
1.7%
|
|
| 1971 | 92 |
1.5%
|
|
| 1972 | 118 |
1.9%
|
|
| 1973 | 104 |
1.7%
|
|
| 1974 | 107 |
1.7%
|
|
| 1975 | 122 |
2%
|
|
| 1976 | 103 |
1.7%
|
|
| 1977 | 119 |
1.9%
|
|
| 1978 | 127 |
2.1%
|
|
| 1979 | 120 |
2%
|
|
| 1980 | 135 |
2.2%
|
|
| 1981 | 112 |
1.8%
|
|
| 1982 | 149 |
2.4%
|
|
| 1983 | 144 |
2.3%
|
|
| 1984 | 168 |
2.7%
|
|
| 1985 | 175 |
2.9%
|
|
| 1986 | 167 |
2.7%
|
|
| 1987 | 181 |
3%
|
|
| 1988 | 179 |
2.9%
|
|
| 1989 | 172 |
2.8%
|
|
| 1990 | 147 |
2.4%
|
|
| 1991 | 144 |
2.3%
|
|
| 1992 | 137 |
2.2%
|
|
| 1993 | 124 |
2%
|
|
| 1994 | 143 |
2.3%
|
|
| 1995 | 155 |
2.5%
|
|
| 1996 | 158 |
2.6%
|
|
| 1997 | 164 |
2.7%
|
|
| 1998 | 164 |
2.7%
|
|
| 1999 | 150 |
2.4%
|
|
| 2000 | 163 |
2.7%
|
|
| 2001 | 149 |
2.4%
|
|
| 2002 | 37 |
0.6%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 27 |
0.4%
|
| 9999 | Don't know | 223 |
3.6%
|
| Sysmiss | 1968 |
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.