National Income Dynamics Study 2014-2015, Wave 4
South Africa, 2014 - 2015
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Reference ID
zaf-saldru-nids-2014-2015-v2.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
May 17, 2016
Last modified
Jul 18, 2023
Page views
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d3 - Biological mother's year of death (w4_a_mthdthy)
Data file: Adult_W4_Anon_V2.0.0
Overview
Valid:
7686
Invalid:
19118
Type:
Discrete
Decimal:
0
loc_start_pos:
832
loc_end_pos:
835
Width:
4
Range:
-3 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| -3 | 175 |
2.3%
|
|
| 1916 | 1 |
0%
|
|
| 1920 | 1 |
0%
|
|
| 1935 | 1 |
0%
|
|
| 1937 | 1 |
0%
|
|
| 1938 | 1 |
0%
|
|
| 1942 | 1 |
0%
|
|
| 1944 | 2 |
0%
|
|
| 1946 | 2 |
0%
|
|
| 1948 | 6 |
0.1%
|
|
| 1949 | 3 |
0%
|
|
| 1950 | 2 |
0%
|
|
| 1951 | 1 |
0%
|
|
| 1952 | 2 |
0%
|
|
| 1953 | 5 |
0.1%
|
|
| 1954 | 3 |
0%
|
|
| 1955 | 3 |
0%
|
|
| 1956 | 3 |
0%
|
|
| 1957 | 4 |
0.1%
|
|
| 1958 | 5 |
0.1%
|
|
| 1959 | 5 |
0.1%
|
|
| 1960 | 12 |
0.2%
|
|
| 1961 | 3 |
0%
|
|
| 1962 | 3 |
0%
|
|
| 1963 | 8 |
0.1%
|
|
| 1964 | 5 |
0.1%
|
|
| 1965 | 7 |
0.1%
|
|
| 1966 | 8 |
0.1%
|
|
| 1967 | 10 |
0.1%
|
|
| 1968 | 11 |
0.1%
|
|
| 1969 | 12 |
0.2%
|
|
| 1970 | 15 |
0.2%
|
|
| 1971 | 10 |
0.1%
|
|
| 1972 | 4 |
0.1%
|
|
| 1973 | 18 |
0.2%
|
|
| 1974 | 16 |
0.2%
|
|
| 1975 | 21 |
0.3%
|
|
| 1976 | 28 |
0.4%
|
|
| 1977 | 18 |
0.2%
|
|
| 1978 | 22 |
0.3%
|
|
| 1979 | 28 |
0.4%
|
|
| 1980 | 37 |
0.5%
|
|
| 1981 | 23 |
0.3%
|
|
| 1982 | 26 |
0.3%
|
|
| 1983 | 35 |
0.5%
|
|
| 1984 | 39 |
0.5%
|
|
| 1985 | 35 |
0.5%
|
|
| 1986 | 41 |
0.5%
|
|
| 1987 | 45 |
0.6%
|
|
| 1988 | 61 |
0.8%
|
|
| 1989 | 57 |
0.7%
|
|
| 1990 | 74 |
1%
|
|
| 1991 | 49 |
0.6%
|
|
| 1992 | 72 |
0.9%
|
|
| 1993 | 59 |
0.8%
|
|
| 1994 | 82 |
1.1%
|
|
| 1995 | 79 |
1%
|
|
| 1996 | 95 |
1.2%
|
|
| 1997 | 100 |
1.3%
|
|
| 1998 | 144 |
1.9%
|
|
| 1999 | 148 |
1.9%
|
|
| 2000 | 176 |
2.3%
|
|
| 2001 | 157 |
2%
|
|
| 2002 | 239 |
3.1%
|
|
| 2003 | 251 |
3.3%
|
|
| 2004 | 249 |
3.2%
|
|
| 2005 | 293 |
3.8%
|
|
| 2006 | 284 |
3.7%
|
|
| 2007 | 278 |
3.6%
|
|
| 2008 | 263 |
3.4%
|
|
| 2009 | 229 |
3%
|
|
| 2010 | 250 |
3.3%
|
|
| 2011 | 262 |
3.4%
|
|
| 2012 | 313 |
4.1%
|
|
| 2013 | 312 |
4.1%
|
|
| 2014 | 302 |
3.9%
|
|
| 2015 | 60 |
0.8%
|
|
| 3333 | Missing | 7 |
0.1%
|
| 5555 | Not Applicable | 5 |
0.1%
|
| 8888 | Refused | 1 |
0%
|
| 9999 | Don't know | 1968 |
25.6%
|
| Sysmiss | 19118 |
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.