National Income Dynamics Study 2012
South Africa, 2012
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Reference ID
ZAF_2012_NIDS-W3_v01_EN_M_v01_A_OCS
Producer(s)
Southern Africa Labour and Development Research Unit
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Created on
Oct 07, 2020
Last modified
Nov 03, 2020
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c2_3_y1 - Date of birth (year) of child 1 (w3_a_bhdob_y1)
Data file: Adult_W3_Anon_V2.1
Overview
Valid:
8716
Invalid:
13750
Minimum:
1922
Maximum:
9999
Type:
Discrete
Decimal:
0
Start:
144
End:
147
Width:
4
Range:
1922 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1922 | 1 |
0%
|
|
| 1942 | 4 |
0%
|
|
| 1943 | 2 |
0%
|
|
| 1944 | 1 |
0%
|
|
| 1945 | 1 |
0%
|
|
| 1946 | 3 |
0%
|
|
| 1947 | 4 |
0%
|
|
| 1948 | 8 |
0.1%
|
|
| 1949 | 3 |
0%
|
|
| 1950 | 10 |
0.1%
|
|
| 1951 | 8 |
0.1%
|
|
| 1952 | 7 |
0.1%
|
|
| 1953 | 8 |
0.1%
|
|
| 1954 | 13 |
0.1%
|
|
| 1955 | 23 |
0.3%
|
|
| 1956 | 15 |
0.2%
|
|
| 1957 | 15 |
0.2%
|
|
| 1958 | 29 |
0.3%
|
|
| 1959 | 24 |
0.3%
|
|
| 1960 | 48 |
0.6%
|
|
| 1961 | 32 |
0.4%
|
|
| 1962 | 49 |
0.6%
|
|
| 1963 | 34 |
0.4%
|
|
| 1964 | 57 |
0.7%
|
|
| 1965 | 67 |
0.8%
|
|
| 1966 | 57 |
0.7%
|
|
| 1967 | 52 |
0.6%
|
|
| 1968 | 59 |
0.7%
|
|
| 1969 | 75 |
0.9%
|
|
| 1970 | 78 |
0.9%
|
|
| 1971 | 69 |
0.8%
|
|
| 1972 | 73 |
0.8%
|
|
| 1973 | 83 |
1%
|
|
| 1974 | 86 |
1%
|
|
| 1975 | 101 |
1.2%
|
|
| 1976 | 106 |
1.2%
|
|
| 1977 | 120 |
1.4%
|
|
| 1978 | 114 |
1.3%
|
|
| 1979 | 129 |
1.5%
|
|
| 1980 | 118 |
1.4%
|
|
| 1981 | 131 |
1.5%
|
|
| 1982 | 148 |
1.7%
|
|
| 1983 | 172 |
2%
|
|
| 1984 | 145 |
1.7%
|
|
| 1985 | 188 |
2.2%
|
|
| 1986 | 167 |
1.9%
|
|
| 1987 | 170 |
2%
|
|
| 1988 | 171 |
2%
|
|
| 1989 | 206 |
2.4%
|
|
| 1990 | 192 |
2.2%
|
|
| 1991 | 202 |
2.3%
|
|
| 1992 | 197 |
2.3%
|
|
| 1993 | 165 |
1.9%
|
|
| 1994 | 113 |
1.3%
|
|
| 1995 | 126 |
1.4%
|
|
| 1996 | 126 |
1.4%
|
|
| 1997 | 135 |
1.5%
|
|
| 1998 | 95 |
1.1%
|
|
| 1999 | 119 |
1.4%
|
|
| 2000 | 141 |
1.6%
|
|
| 2001 | 118 |
1.4%
|
|
| 2002 | 142 |
1.6%
|
|
| 2003 | 175 |
2%
|
|
| 2004 | 184 |
2.1%
|
|
| 2005 | 215 |
2.5%
|
|
| 2006 | 272 |
3.1%
|
|
| 2007 | 268 |
3.1%
|
|
| 2008 | 451 |
5.2%
|
|
| 2009 | 480 |
5.5%
|
|
| 2010 | 524 |
6%
|
|
| 2011 | 479 |
5.5%
|
|
| 2012 | 308 |
3.5%
|
|
| 3333 | Missing | 5 |
0.1%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 1 |
0%
|
| 9999 | Don't know | 199 |
2.3%
|
| Sysmiss | 13750 |
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.