National Income Dynamics Study 2010-2011, Wave 2 Secure Data
South Africa, 2010 - 2011
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Reference ID
zaf-saldru-nidssd-2010-2011-v4.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
Aug 24, 2018
Last modified
Oct 18, 2023
Page views
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b1_y - Date of birth (year) (w2_p_dob_y)
Data file: Proxy_W2_Secure_V4.0.0
Overview
Valid:
1099
Invalid:
25
Type:
Discrete
Decimal:
0
loc_start_pos:
217
loc_end_pos:
220
Width:
4
Range:
1908 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1908 | 1 |
0.1%
|
|
| 1910 | 1 |
0.1%
|
|
| 1914 | 2 |
0.2%
|
|
| 1918 | 2 |
0.2%
|
|
| 1920 | 1 |
0.1%
|
|
| 1921 | 3 |
0.3%
|
|
| 1922 | 5 |
0.5%
|
|
| 1923 | 2 |
0.2%
|
|
| 1924 | 3 |
0.3%
|
|
| 1925 | 1 |
0.1%
|
|
| 1926 | 3 |
0.3%
|
|
| 1927 | 3 |
0.3%
|
|
| 1928 | 1 |
0.1%
|
|
| 1929 | 3 |
0.3%
|
|
| 1930 | 5 |
0.5%
|
|
| 1931 | 4 |
0.4%
|
|
| 1932 | 2 |
0.2%
|
|
| 1933 | 3 |
0.3%
|
|
| 1934 | 3 |
0.3%
|
|
| 1935 | 3 |
0.3%
|
|
| 1936 | 4 |
0.4%
|
|
| 1937 | 4 |
0.4%
|
|
| 1938 | 3 |
0.3%
|
|
| 1939 | 4 |
0.4%
|
|
| 1940 | 3 |
0.3%
|
|
| 1941 | 2 |
0.2%
|
|
| 1942 | 2 |
0.2%
|
|
| 1943 | 4 |
0.4%
|
|
| 1944 | 6 |
0.5%
|
|
| 1945 | 6 |
0.5%
|
|
| 1946 | 5 |
0.5%
|
|
| 1947 | 4 |
0.4%
|
|
| 1948 | 8 |
0.7%
|
|
| 1949 | 4 |
0.4%
|
|
| 1950 | 7 |
0.6%
|
|
| 1951 | 4 |
0.4%
|
|
| 1952 | 10 |
0.9%
|
|
| 1953 | 8 |
0.7%
|
|
| 1954 | 12 |
1.1%
|
|
| 1955 | 7 |
0.6%
|
|
| 1956 | 8 |
0.7%
|
|
| 1957 | 11 |
1%
|
|
| 1958 | 16 |
1.5%
|
|
| 1959 | 7 |
0.6%
|
|
| 1960 | 10 |
0.9%
|
|
| 1961 | 8 |
0.7%
|
|
| 1962 | 10 |
0.9%
|
|
| 1963 | 10 |
0.9%
|
|
| 1964 | 15 |
1.4%
|
|
| 1965 | 12 |
1.1%
|
|
| 1966 | 11 |
1%
|
|
| 1967 | 7 |
0.6%
|
|
| 1968 | 18 |
1.6%
|
|
| 1969 | 15 |
1.4%
|
|
| 1970 | 10 |
0.9%
|
|
| 1971 | 12 |
1.1%
|
|
| 1972 | 25 |
2.3%
|
|
| 1973 | 19 |
1.7%
|
|
| 1974 | 13 |
1.2%
|
|
| 1975 | 20 |
1.8%
|
|
| 1976 | 16 |
1.5%
|
|
| 1977 | 15 |
1.4%
|
|
| 1978 | 21 |
1.9%
|
|
| 1979 | 20 |
1.8%
|
|
| 1980 | 24 |
2.2%
|
|
| 1981 | 20 |
1.8%
|
|
| 1982 | 35 |
3.2%
|
|
| 1983 | 28 |
2.5%
|
|
| 1984 | 30 |
2.7%
|
|
| 1985 | 32 |
2.9%
|
|
| 1986 | 39 |
3.5%
|
|
| 1987 | 35 |
3.2%
|
|
| 1988 | 53 |
4.8%
|
|
| 1989 | 50 |
4.5%
|
|
| 1990 | 56 |
5.1%
|
|
| 1991 | 61 |
5.6%
|
|
| 1992 | 40 |
3.6%
|
|
| 1993 | 44 |
4%
|
|
| 1994 | 29 |
2.6%
|
|
| 1995 | 30 |
2.7%
|
|
| 1996 | 4 |
0.4%
|
|
| 2222 | Not asked in Phase 2 | 0 |
0%
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 1 |
0.1%
|
| 9999 | Don't know | 1 |
0.1%
|
| Sysmiss | 25 |
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.