National Income Dynamics Study 2012, Wave 3
South Africa, 2012
Southern Africa Labour and Development Research Unit
Created on
August 31, 2016
Last modified
August 31, 2016
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b1_y - Date of birth (year) (w3_a_dob_y)
Data file: Adult_W3_Anon_V2.1
Overview
Valid:
18697
Invalid:
3769
Minimum:
1907
Maximum:
9999
Type:
Discrete
Decimal:
0
Width:
4
Range:
1907 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1907 | 1 |
0%
|
|
| 1912 | 1 |
0%
|
|
| 1914 | 2 |
0%
|
|
| 1916 | 2 |
0%
|
|
| 1917 | 2 |
0%
|
|
| 1918 | 4 |
0%
|
|
| 1919 | 5 |
0%
|
|
| 1920 | 10 |
0.1%
|
|
| 1921 | 7 |
0%
|
|
| 1922 | 10 |
0.1%
|
|
| 1923 | 8 |
0%
|
|
| 1924 | 11 |
0.1%
|
|
| 1925 | 17 |
0.1%
|
|
| 1926 | 25 |
0.1%
|
|
| 1927 | 26 |
0.1%
|
|
| 1928 | 33 |
0.2%
|
|
| 1929 | 25 |
0.1%
|
|
| 1930 | 66 |
0.4%
|
|
| 1931 | 42 |
0.2%
|
|
| 1932 | 46 |
0.2%
|
|
| 1933 | 59 |
0.3%
|
|
| 1934 | 56 |
0.3%
|
|
| 1935 | 66 |
0.4%
|
|
| 1936 | 62 |
0.3%
|
|
| 1937 | 55 |
0.3%
|
|
| 1938 | 86 |
0.5%
|
|
| 1939 | 87 |
0.5%
|
|
| 1940 | 143 |
0.8%
|
|
| 1941 | 86 |
0.5%
|
|
| 1942 | 109 |
0.6%
|
|
| 1943 | 114 |
0.6%
|
|
| 1944 | 113 |
0.6%
|
|
| 1945 | 110 |
0.6%
|
|
| 1946 | 113 |
0.6%
|
|
| 1947 | 132 |
0.7%
|
|
| 1948 | 175 |
0.9%
|
|
| 1949 | 136 |
0.7%
|
|
| 1950 | 188 |
1%
|
|
| 1951 | 161 |
0.9%
|
|
| 1952 | 204 |
1.1%
|
|
| 1953 | 194 |
1%
|
|
| 1954 | 209 |
1.1%
|
|
| 1955 | 172 |
0.9%
|
|
| 1956 | 235 |
1.3%
|
|
| 1957 | 232 |
1.2%
|
|
| 1958 | 234 |
1.3%
|
|
| 1959 | 219 |
1.2%
|
|
| 1960 | 262 |
1.4%
|
|
| 1961 | 218 |
1.2%
|
|
| 1962 | 271 |
1.4%
|
|
| 1963 | 249 |
1.3%
|
|
| 1964 | 284 |
1.5%
|
|
| 1965 | 275 |
1.5%
|
|
| 1966 | 233 |
1.2%
|
|
| 1967 | 248 |
1.3%
|
|
| 1968 | 242 |
1.3%
|
|
| 1969 | 273 |
1.5%
|
|
| 1970 | 279 |
1.5%
|
|
| 1971 | 257 |
1.4%
|
|
| 1972 | 289 |
1.5%
|
|
| 1973 | 305 |
1.6%
|
|
| 1974 | 277 |
1.5%
|
|
| 1975 | 319 |
1.7%
|
|
| 1976 | 318 |
1.7%
|
|
| 1977 | 308 |
1.6%
|
|
| 1978 | 306 |
1.6%
|
|
| 1979 | 323 |
1.7%
|
|
| 1980 | 345 |
1.8%
|
|
| 1981 | 325 |
1.7%
|
|
| 1982 | 407 |
2.2%
|
|
| 1983 | 406 |
2.2%
|
|
| 1984 | 407 |
2.2%
|
|
| 1985 | 478 |
2.6%
|
|
| 1986 | 472 |
2.5%
|
|
| 1987 | 469 |
2.5%
|
|
| 1988 | 522 |
2.8%
|
|
| 1989 | 510 |
2.7%
|
|
| 1990 | 554 |
3%
|
|
| 1991 | 590 |
3.2%
|
|
| 1992 | 563 |
3%
|
|
| 1993 | 608 |
3.3%
|
|
| 1994 | 664 |
3.6%
|
|
| 1995 | 638 |
3.4%
|
|
| 1996 | 707 |
3.8%
|
|
| 1997 | 395 |
2.1%
|
|
| 1998 | 5 |
0%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 3 |
0%
|
| Sysmiss | 3769 |
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.