National Income Dynamics Study 2010-2011, Wave 2
South Africa, 2010 - 2011
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Reference ID
zaf-saldru-nids-2010-2011-v4.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
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Created on
Nov 24, 2013
Last modified
Jul 18, 2023
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c2_3_y1 - Date of birth (year) of child 1 (w2_a_bhdob_y1)
Data file: Adult_W2_Anon_V4.0.0
Overview
Valid:
7949
Invalid:
13925
Type:
Discrete
Decimal:
0
Width:
4
Range:
1922 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1922 | 1 |
0%
|
|
| 1929 | 1 |
0%
|
|
| 1930 | 2 |
0%
|
|
| 1938 | 2 |
0%
|
|
| 1939 | 1 |
0%
|
|
| 1940 | 1 |
0%
|
|
| 1941 | 6 |
0%
|
|
| 1942 | 6 |
0%
|
|
| 1943 | 5 |
0%
|
|
| 1944 | 5 |
0%
|
|
| 1945 | 3 |
0%
|
|
| 1946 | 6 |
0%
|
|
| 1947 | 12 |
0.1%
|
|
| 1948 | 19 |
0.1%
|
|
| 1949 | 14 |
0.1%
|
|
| 1950 | 28 |
0.1%
|
|
| 1951 | 18 |
0.1%
|
|
| 1952 | 29 |
0.1%
|
|
| 1953 | 17 |
0.1%
|
|
| 1954 | 31 |
0.1%
|
|
| 1955 | 27 |
0.1%
|
|
| 1956 | 42 |
0.2%
|
|
| 1957 | 37 |
0.2%
|
|
| 1958 | 51 |
0.2%
|
|
| 1959 | 48 |
0.2%
|
|
| 1960 | 72 |
0.3%
|
|
| 1961 | 46 |
0.2%
|
|
| 1962 | 74 |
0.3%
|
|
| 1963 | 65 |
0.3%
|
|
| 1964 | 79 |
0.4%
|
|
| 1965 | 86 |
0.4%
|
|
| 1966 | 87 |
0.4%
|
|
| 1967 | 70 |
0.3%
|
|
| 1968 | 90 |
0.4%
|
|
| 1969 | 90 |
0.4%
|
|
| 1970 | 105 |
0.5%
|
|
| 1971 | 85 |
0.4%
|
|
| 1972 | 108 |
0.5%
|
|
| 1973 | 139 |
0.6%
|
|
| 1974 | 124 |
0.6%
|
|
| 1975 | 114 |
0.5%
|
|
| 1976 | 149 |
0.7%
|
|
| 1977 | 140 |
0.6%
|
|
| 1978 | 117 |
0.5%
|
|
| 1979 | 151 |
0.7%
|
|
| 1980 | 127 |
0.6%
|
|
| 1981 | 128 |
0.6%
|
|
| 1982 | 189 |
0.9%
|
|
| 1983 | 151 |
0.7%
|
|
| 1984 | 143 |
0.7%
|
|
| 1985 | 155 |
0.7%
|
|
| 1986 | 142 |
0.6%
|
|
| 1987 | 117 |
0.5%
|
|
| 1988 | 142 |
0.6%
|
|
| 1989 | 163 |
0.7%
|
|
| 1990 | 164 |
0.7%
|
|
| 1991 | 146 |
0.7%
|
|
| 1992 | 157 |
0.7%
|
|
| 1993 | 142 |
0.6%
|
|
| 1994 | 165 |
0.8%
|
|
| 1995 | 146 |
0.7%
|
|
| 1996 | 147 |
0.7%
|
|
| 1997 | 164 |
0.7%
|
|
| 1998 | 166 |
0.8%
|
|
| 1999 | 163 |
0.7%
|
|
| 2000 | 195 |
0.9%
|
|
| 2001 | 167 |
0.8%
|
|
| 2002 | 179 |
0.8%
|
|
| 2003 | 223 |
1%
|
|
| 2004 | 203 |
0.9%
|
|
| 2005 | 231 |
1.1%
|
|
| 2006 | 258 |
1.2%
|
|
| 2007 | 278 |
1.3%
|
|
| 2008 | 297 |
1.4%
|
|
| 2009 | 245 |
1.1%
|
|
| 2010 | 180 |
0.8%
|
|
| 2011 | 5 |
0%
|
|
| 2222 | Not asked in Phase 2 | 0 |
0%
|
| 3333 | Missing | 1 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 67 |
0.3%
|
| Sysmiss | 13925 |
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.