National Income Dynamics Study 2008
Wave 1
South Africa, 2008
Get Microdata
Reference ID
zaf-saldru-nids-2008-v7.0.0
Producer(s)
Southern Africa Labour and Development Research Unit
Collections
Created on
Nov 24, 2013
Last modified
Jul 18, 2023
Page views
1473290
Downloads
1707202
d3 - Biological Mother's Year of death (w1_a_mthdthy)
Data file: Adult_W1_Anon_V7.0.0
Overview
Valid:
6379
Invalid:
10493
Type:
Discrete
Decimal:
0
Width:
20
Range:
1925 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1925 | 1 |
0%
|
|
| 1927 | 1 |
0%
|
|
| 1932 | 1 |
0%
|
|
| 1936 | 1 |
0%
|
|
| 1937 | 2 |
0%
|
|
| 1938 | 3 |
0%
|
|
| 1940 | 2 |
0%
|
|
| 1942 | 1 |
0%
|
|
| 1944 | 1 |
0%
|
|
| 1945 | 1 |
0%
|
|
| 1946 | 2 |
0%
|
|
| 1947 | 1 |
0%
|
|
| 1948 | 4 |
0.1%
|
|
| 1949 | 4 |
0.1%
|
|
| 1950 | 6 |
0.1%
|
|
| 1951 | 7 |
0.1%
|
|
| 1952 | 2 |
0%
|
|
| 1953 | 6 |
0.1%
|
|
| 1954 | 3 |
0%
|
|
| 1955 | 4 |
0.1%
|
|
| 1956 | 5 |
0.1%
|
|
| 1957 | 2 |
0%
|
|
| 1958 | 7 |
0.1%
|
|
| 1959 | 10 |
0.2%
|
|
| 1960 | 13 |
0.2%
|
|
| 1961 | 5 |
0.1%
|
|
| 1962 | 10 |
0.2%
|
|
| 1963 | 5 |
0.1%
|
|
| 1964 | 5 |
0.1%
|
|
| 1965 | 10 |
0.2%
|
|
| 1966 | 9 |
0.1%
|
|
| 1967 | 7 |
0.1%
|
|
| 1968 | 20 |
0.3%
|
|
| 1969 | 12 |
0.2%
|
|
| 1970 | 26 |
0.4%
|
|
| 1971 | 20 |
0.3%
|
|
| 1972 | 24 |
0.4%
|
|
| 1973 | 21 |
0.3%
|
|
| 1974 | 18 |
0.3%
|
|
| 1975 | 32 |
0.5%
|
|
| 1976 | 31 |
0.5%
|
|
| 1977 | 27 |
0.4%
|
|
| 1978 | 40 |
0.6%
|
|
| 1979 | 31 |
0.5%
|
|
| 1980 | 56 |
0.9%
|
|
| 1981 | 28 |
0.4%
|
|
| 1982 | 33 |
0.5%
|
|
| 1983 | 44 |
0.7%
|
|
| 1984 | 44 |
0.7%
|
|
| 1985 | 48 |
0.8%
|
|
| 1986 | 52 |
0.8%
|
|
| 1987 | 69 |
1.1%
|
|
| 1988 | 70 |
1.1%
|
|
| 1989 | 55 |
0.9%
|
|
| 1990 | 81 |
1.3%
|
|
| 1991 | 54 |
0.8%
|
|
| 1992 | 87 |
1.4%
|
|
| 1993 | 96 |
1.5%
|
|
| 1994 | 96 |
1.5%
|
|
| 1995 | 74 |
1.2%
|
|
| 1996 | 96 |
1.5%
|
|
| 1997 | 96 |
1.5%
|
|
| 1998 | 155 |
2.4%
|
|
| 1999 | 133 |
2.1%
|
|
| 2000 | 184 |
2.9%
|
|
| 2001 | 174 |
2.7%
|
|
| 2002 | 172 |
2.7%
|
|
| 2003 | 229 |
3.6%
|
|
| 2004 | 226 |
3.5%
|
|
| 2005 | 244 |
3.8%
|
|
| 2006 | 238 |
3.7%
|
|
| 2007 | 285 |
4.5%
|
|
| 2008 | 100 |
1.6%
|
|
| 3333 | Missing | 136 |
2.1%
|
| 5555 | Not Applicable | 0 |
0%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 2481 |
38.9%
|
| Sysmiss | 10493 |
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.