National Income Dynamics Study 2008, Wave 1 Secure Data
South Africa, 2008
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Reference ID
zaf-saldru-nidssd-2008-v7.0.0
Producer(s)
Southern Africa Labour and Development Research Unit
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Created on
Aug 24, 2018
Last modified
Oct 18, 2023
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c2_3_3 - Date of birth (year) of child 3 (w1_a_bhdob_y3)
Data file: Adult_W1_Secure_V7.0.0
Overview
Valid:
4060
Invalid:
12812
Type:
Discrete
Decimal:
0
loc_start_pos:
625
loc_end_pos:
628
Width:
4
Range:
1940 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1940 | 1 |
0%
|
|
| 1946 | 1 |
0%
|
|
| 1947 | 1 |
0%
|
|
| 1948 | 3 |
0.1%
|
|
| 1949 | 5 |
0.1%
|
|
| 1950 | 6 |
0.1%
|
|
| 1951 | 6 |
0.1%
|
|
| 1952 | 7 |
0.2%
|
|
| 1953 | 9 |
0.2%
|
|
| 1954 | 10 |
0.2%
|
|
| 1955 | 7 |
0.2%
|
|
| 1956 | 11 |
0.3%
|
|
| 1957 | 8 |
0.2%
|
|
| 1958 | 19 |
0.5%
|
|
| 1959 | 16 |
0.4%
|
|
| 1960 | 24 |
0.6%
|
|
| 1961 | 24 |
0.6%
|
|
| 1962 | 25 |
0.6%
|
|
| 1963 | 45 |
1.1%
|
|
| 1964 | 47 |
1.2%
|
|
| 1965 | 46 |
1.1%
|
|
| 1966 | 51 |
1.3%
|
|
| 1967 | 50 |
1.2%
|
|
| 1968 | 55 |
1.4%
|
|
| 1969 | 45 |
1.1%
|
|
| 1970 | 69 |
1.7%
|
|
| 1971 | 64 |
1.6%
|
|
| 1972 | 62 |
1.5%
|
|
| 1973 | 66 |
1.6%
|
|
| 1974 | 76 |
1.9%
|
|
| 1975 | 83 |
2%
|
|
| 1976 | 80 |
2%
|
|
| 1977 | 59 |
1.5%
|
|
| 1978 | 60 |
1.5%
|
|
| 1979 | 75 |
1.8%
|
|
| 1980 | 77 |
1.9%
|
|
| 1981 | 70 |
1.7%
|
|
| 1982 | 98 |
2.4%
|
|
| 1983 | 106 |
2.6%
|
|
| 1984 | 87 |
2.1%
|
|
| 1985 | 96 |
2.4%
|
|
| 1986 | 103 |
2.5%
|
|
| 1987 | 87 |
2.1%
|
|
| 1988 | 83 |
2%
|
|
| 1989 | 90 |
2.2%
|
|
| 1990 | 88 |
2.2%
|
|
| 1991 | 98 |
2.4%
|
|
| 1992 | 74 |
1.8%
|
|
| 1993 | 91 |
2.2%
|
|
| 1994 | 84 |
2.1%
|
|
| 1995 | 80 |
2%
|
|
| 1996 | 97 |
2.4%
|
|
| 1997 | 95 |
2.3%
|
|
| 1998 | 69 |
1.7%
|
|
| 1999 | 93 |
2.3%
|
|
| 2000 | 96 |
2.4%
|
|
| 2001 | 87 |
2.1%
|
|
| 2002 | 76 |
1.9%
|
|
| 2003 | 92 |
2.3%
|
|
| 2004 | 80 |
2%
|
|
| 2005 | 81 |
2%
|
|
| 2006 | 92 |
2.3%
|
|
| 2007 | 97 |
2.4%
|
|
| 2008 | 42 |
1%
|
|
| 3333 | Missing | 6 |
0.1%
|
| 5555 | Not Applicable | 0 |
0%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 3 |
0.1%
|
| 9999 | Don't know | 326 |
8%
|
| Sysmiss | 12812 |
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.