National Income Dynamics Study 2012, Wave 3
South Africa, 2012
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Reference ID
zaf-saldru-nids-2012-v3.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
Nov 24, 2013
Last modified
Jul 18, 2023
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c2_3_y1 - Date of birth (year) of child 1 (w3_a_bhdob_y1)
Data file: Adult_W3_Anon_V3.0.0
Overview
Valid:
8701
Invalid:
13756
Type:
Discrete
Decimal:
0
loc_start_pos:
144
loc_end_pos:
147
Width:
4
Range:
1922 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1922 | 1 |
0%
|
|
| 1937 | 1 |
0%
|
|
| 1938 | 1 |
0%
|
|
| 1941 | 3 |
0%
|
|
| 1942 | 5 |
0.1%
|
|
| 1943 | 4 |
0%
|
|
| 1944 | 5 |
0.1%
|
|
| 1945 | 2 |
0%
|
|
| 1946 | 4 |
0%
|
|
| 1947 | 8 |
0.1%
|
|
| 1948 | 17 |
0.2%
|
|
| 1949 | 12 |
0.1%
|
|
| 1950 | 23 |
0.3%
|
|
| 1951 | 17 |
0.2%
|
|
| 1952 | 24 |
0.3%
|
|
| 1953 | 15 |
0.2%
|
|
| 1954 | 26 |
0.3%
|
|
| 1955 | 32 |
0.4%
|
|
| 1956 | 39 |
0.4%
|
|
| 1957 | 30 |
0.3%
|
|
| 1958 | 52 |
0.6%
|
|
| 1959 | 48 |
0.6%
|
|
| 1960 | 68 |
0.8%
|
|
| 1961 | 45 |
0.5%
|
|
| 1962 | 74 |
0.9%
|
|
| 1963 | 61 |
0.7%
|
|
| 1964 | 86 |
1%
|
|
| 1965 | 87 |
1%
|
|
| 1966 | 90 |
1%
|
|
| 1967 | 74 |
0.9%
|
|
| 1968 | 98 |
1.1%
|
|
| 1969 | 101 |
1.2%
|
|
| 1970 | 107 |
1.2%
|
|
| 1971 | 84 |
1%
|
|
| 1972 | 108 |
1.2%
|
|
| 1973 | 133 |
1.5%
|
|
| 1974 | 131 |
1.5%
|
|
| 1975 | 125 |
1.4%
|
|
| 1976 | 155 |
1.8%
|
|
| 1977 | 157 |
1.8%
|
|
| 1978 | 131 |
1.5%
|
|
| 1979 | 163 |
1.9%
|
|
| 1980 | 119 |
1.4%
|
|
| 1981 | 139 |
1.6%
|
|
| 1982 | 189 |
2.2%
|
|
| 1983 | 155 |
1.8%
|
|
| 1984 | 153 |
1.8%
|
|
| 1985 | 168 |
1.9%
|
|
| 1986 | 148 |
1.7%
|
|
| 1987 | 115 |
1.3%
|
|
| 1988 | 151 |
1.7%
|
|
| 1989 | 165 |
1.9%
|
|
| 1990 | 169 |
1.9%
|
|
| 1991 | 153 |
1.8%
|
|
| 1992 | 156 |
1.8%
|
|
| 1993 | 146 |
1.7%
|
|
| 1994 | 169 |
1.9%
|
|
| 1995 | 164 |
1.9%
|
|
| 1996 | 177 |
2%
|
|
| 1997 | 170 |
2%
|
|
| 1998 | 173 |
2%
|
|
| 1999 | 151 |
1.7%
|
|
| 2000 | 204 |
2.3%
|
|
| 2001 | 176 |
2%
|
|
| 2002 | 188 |
2.2%
|
|
| 2003 | 218 |
2.5%
|
|
| 2004 | 216 |
2.5%
|
|
| 2005 | 235 |
2.7%
|
|
| 2006 | 268 |
3.1%
|
|
| 2007 | 288 |
3.3%
|
|
| 2008 | 299 |
3.4%
|
|
| 2009 | 246 |
2.8%
|
|
| 2010 | 274 |
3.1%
|
|
| 2011 | 255 |
2.9%
|
|
| 2012 | 195 |
2.2%
|
|
| 3333 | Missing | 1 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 61 |
0.7%
|
| Sysmiss | 13756 |
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.