National Income Dynamics Study 2017, Wave 5 Secure Data
South Africa, 2017
Southern Africa Labour and Development Research Unit,
Created on
August 29, 2018
Last modified
August 29, 2018
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b1_y - Date of birth (year) (w5_p_dob_y)
Data file: proxy_w5_secure_v1.0.0
Overview
Valid:
1921
Invalid:
31
Type:
discrete
Decimal:
0
loc_width:
4
var_range:
1914 - 9999
var_format:
numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1914 | 1 |
0.1%
|
|
| 1916 | 1 |
0.1%
|
|
| 1918 | 2 |
0.1%
|
|
| 1919 | 2 |
0.1%
|
|
| 1920 | 4 |
0.2%
|
|
| 1921 | 1 |
0.1%
|
|
| 1922 | 2 |
0.1%
|
|
| 1923 | 3 |
0.2%
|
|
| 1924 | 2 |
0.1%
|
|
| 1925 | 3 |
0.2%
|
|
| 1926 | 4 |
0.2%
|
|
| 1927 | 4 |
0.2%
|
|
| 1928 | 4 |
0.2%
|
|
| 1929 | 10 |
0.5%
|
|
| 1930 | 8 |
0.4%
|
|
| 1931 | 2 |
0.1%
|
|
| 1932 | 12 |
0.6%
|
|
| 1933 | 8 |
0.4%
|
|
| 1934 | 6 |
0.3%
|
|
| 1935 | 8 |
0.4%
|
|
| 1936 | 9 |
0.5%
|
|
| 1937 | 13 |
0.7%
|
|
| 1938 | 7 |
0.4%
|
|
| 1939 | 7 |
0.4%
|
|
| 1940 | 8 |
0.4%
|
|
| 1941 | 6 |
0.3%
|
|
| 1942 | 13 |
0.7%
|
|
| 1943 | 9 |
0.5%
|
|
| 1944 | 6 |
0.3%
|
|
| 1945 | 11 |
0.6%
|
|
| 1946 | 8 |
0.4%
|
|
| 1947 | 9 |
0.5%
|
|
| 1948 | 8 |
0.4%
|
|
| 1949 | 6 |
0.3%
|
|
| 1950 | 14 |
0.7%
|
|
| 1951 | 12 |
0.6%
|
|
| 1952 | 12 |
0.6%
|
|
| 1953 | 17 |
0.9%
|
|
| 1954 | 15 |
0.8%
|
|
| 1955 | 8 |
0.4%
|
|
| 1956 | 15 |
0.8%
|
|
| 1957 | 15 |
0.8%
|
|
| 1958 | 24 |
1.2%
|
|
| 1959 | 13 |
0.7%
|
|
| 1960 | 20 |
1%
|
|
| 1961 | 16 |
0.8%
|
|
| 1962 | 31 |
1.6%
|
|
| 1963 | 20 |
1%
|
|
| 1964 | 27 |
1.4%
|
|
| 1965 | 30 |
1.6%
|
|
| 1966 | 17 |
0.9%
|
|
| 1967 | 21 |
1.1%
|
|
| 1968 | 19 |
1%
|
|
| 1969 | 19 |
1%
|
|
| 1970 | 20 |
1%
|
|
| 1971 | 16 |
0.8%
|
|
| 1972 | 22 |
1.1%
|
|
| 1973 | 31 |
1.6%
|
|
| 1974 | 28 |
1.5%
|
|
| 1975 | 26 |
1.4%
|
|
| 1976 | 24 |
1.2%
|
|
| 1977 | 25 |
1.3%
|
|
| 1978 | 31 |
1.6%
|
|
| 1979 | 28 |
1.5%
|
|
| 1980 | 38 |
2%
|
|
| 1981 | 35 |
1.8%
|
|
| 1982 | 28 |
1.5%
|
|
| 1983 | 39 |
2%
|
|
| 1984 | 36 |
1.9%
|
|
| 1985 | 35 |
1.8%
|
|
| 1986 | 35 |
1.8%
|
|
| 1987 | 36 |
1.9%
|
|
| 1988 | 50 |
2.6%
|
|
| 1989 | 42 |
2.2%
|
|
| 1990 | 69 |
3.6%
|
|
| 1991 | 60 |
3.1%
|
|
| 1992 | 59 |
3.1%
|
|
| 1993 | 58 |
3%
|
|
| 1994 | 64 |
3.3%
|
|
| 1995 | 71 |
3.7%
|
|
| 1996 | 76 |
4%
|
|
| 1997 | 82 |
4.3%
|
|
| 1998 | 63 |
3.3%
|
|
| 1999 | 43 |
2.2%
|
|
| 2000 | 31 |
1.6%
|
|
| 2001 | 33 |
1.7%
|
|
| 2002 | 9 |
0.5%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 6 |
0.3%
|
| Sysmiss | 31 |
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.