National Income Dynamics Study 2012, Wave 3
South Africa, 2012
Southern Africa Labour and Development Research Unit
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August 31, 2016
Last modified
August 31, 2016
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d3 - Biological mother's year of death (w3_a_mthdthy)
Data file: Adult_W3_Anon_V2.1
Overview
Valid:
7817
Invalid:
14649
Minimum:
1918
Maximum:
9999
Type:
Discrete
Decimal:
0
Width:
4
Range:
1918 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1918 | 1 |
0%
|
|
| 1926 | 1 |
0%
|
|
| 1927 | 1 |
0%
|
|
| 1937 | 2 |
0%
|
|
| 1940 | 3 |
0%
|
|
| 1942 | 1 |
0%
|
|
| 1944 | 4 |
0.1%
|
|
| 1945 | 1 |
0%
|
|
| 1946 | 2 |
0%
|
|
| 1947 | 3 |
0%
|
|
| 1948 | 7 |
0.1%
|
|
| 1949 | 4 |
0.1%
|
|
| 1950 | 6 |
0.1%
|
|
| 1951 | 6 |
0.1%
|
|
| 1952 | 3 |
0%
|
|
| 1953 | 4 |
0.1%
|
|
| 1954 | 3 |
0%
|
|
| 1955 | 4 |
0.1%
|
|
| 1956 | 5 |
0.1%
|
|
| 1957 | 2 |
0%
|
|
| 1958 | 7 |
0.1%
|
|
| 1959 | 11 |
0.1%
|
|
| 1960 | 8 |
0.1%
|
|
| 1961 | 3 |
0%
|
|
| 1962 | 7 |
0.1%
|
|
| 1963 | 5 |
0.1%
|
|
| 1964 | 6 |
0.1%
|
|
| 1965 | 13 |
0.2%
|
|
| 1966 | 8 |
0.1%
|
|
| 1967 | 11 |
0.1%
|
|
| 1968 | 16 |
0.2%
|
|
| 1969 | 13 |
0.2%
|
|
| 1970 | 19 |
0.2%
|
|
| 1971 | 6 |
0.1%
|
|
| 1972 | 17 |
0.2%
|
|
| 1973 | 34 |
0.4%
|
|
| 1974 | 18 |
0.2%
|
|
| 1975 | 26 |
0.3%
|
|
| 1976 | 27 |
0.3%
|
|
| 1977 | 29 |
0.4%
|
|
| 1978 | 29 |
0.4%
|
|
| 1979 | 35 |
0.4%
|
|
| 1980 | 49 |
0.6%
|
|
| 1981 | 26 |
0.3%
|
|
| 1982 | 36 |
0.5%
|
|
| 1983 | 53 |
0.7%
|
|
| 1984 | 42 |
0.5%
|
|
| 1985 | 48 |
0.6%
|
|
| 1986 | 52 |
0.7%
|
|
| 1987 | 62 |
0.8%
|
|
| 1988 | 68 |
0.9%
|
|
| 1989 | 71 |
0.9%
|
|
| 1990 | 81 |
1%
|
|
| 1991 | 51 |
0.7%
|
|
| 1992 | 83 |
1.1%
|
|
| 1993 | 83 |
1.1%
|
|
| 1994 | 86 |
1.1%
|
|
| 1995 | 86 |
1.1%
|
|
| 1996 | 123 |
1.6%
|
|
| 1997 | 87 |
1.1%
|
|
| 1998 | 149 |
1.9%
|
|
| 1999 | 131 |
1.7%
|
|
| 2000 | 201 |
2.6%
|
|
| 2001 | 177 |
2.3%
|
|
| 2002 | 217 |
2.8%
|
|
| 2003 | 229 |
2.9%
|
|
| 2004 | 233 |
3%
|
|
| 2005 | 298 |
3.8%
|
|
| 2006 | 284 |
3.6%
|
|
| 2007 | 270 |
3.5%
|
|
| 2008 | 335 |
4.3%
|
|
| 2009 | 286 |
3.7%
|
|
| 2010 | 292 |
3.7%
|
|
| 2011 | 310 |
4%
|
|
| 2012 | 145 |
1.9%
|
|
| 3333 | Missing | 45 |
0.6%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 21 |
0.3%
|
| 9999 | Don't know | 2596 |
33.2%
|
| Sysmiss | 14649 |
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.