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
Page views
476076
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e13 - Mother's year of birth (w3_c_mthbrthy)
Data file: Child_W3_Anon_V3.0.0
Overview
Valid:
3393
Invalid:
8989
Type:
Discrete
Decimal:
0
loc_start_pos:
517
loc_end_pos:
520
Width:
4
Range:
1950 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1950 | 1 |
0%
|
|
| 1951 | 1 |
0%
|
|
| 1952 | 1 |
0%
|
|
| 1953 | 2 |
0.1%
|
|
| 1954 | 6 |
0.2%
|
|
| 1955 | 1 |
0%
|
|
| 1956 | 6 |
0.2%
|
|
| 1957 | 2 |
0.1%
|
|
| 1958 | 4 |
0.1%
|
|
| 1959 | 6 |
0.2%
|
|
| 1960 | 10 |
0.3%
|
|
| 1961 | 7 |
0.2%
|
|
| 1962 | 15 |
0.4%
|
|
| 1963 | 15 |
0.4%
|
|
| 1964 | 15 |
0.4%
|
|
| 1965 | 25 |
0.7%
|
|
| 1966 | 28 |
0.8%
|
|
| 1967 | 34 |
1%
|
|
| 1968 | 46 |
1.4%
|
|
| 1969 | 48 |
1.4%
|
|
| 1970 | 63 |
1.9%
|
|
| 1971 | 38 |
1.1%
|
|
| 1972 | 81 |
2.4%
|
|
| 1973 | 90 |
2.7%
|
|
| 1974 | 74 |
2.2%
|
|
| 1975 | 121 |
3.6%
|
|
| 1976 | 114 |
3.4%
|
|
| 1977 | 103 |
3%
|
|
| 1978 | 98 |
2.9%
|
|
| 1979 | 125 |
3.7%
|
|
| 1980 | 129 |
3.8%
|
|
| 1981 | 123 |
3.6%
|
|
| 1982 | 175 |
5.2%
|
|
| 1983 | 156 |
4.6%
|
|
| 1984 | 115 |
3.4%
|
|
| 1985 | 111 |
3.3%
|
|
| 1986 | 86 |
2.5%
|
|
| 1987 | 79 |
2.3%
|
|
| 1988 | 72 |
2.1%
|
|
| 1989 | 50 |
1.5%
|
|
| 1990 | 54 |
1.6%
|
|
| 1991 | 24 |
0.7%
|
|
| 1992 | 24 |
0.7%
|
|
| 1993 | 11 |
0.3%
|
|
| 1994 | 4 |
0.1%
|
|
| 1995 | 3 |
0.1%
|
|
| 1996 | 5 |
0.1%
|
|
| 3333 | Missing | 29 |
0.9%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 963 |
28.4%
|
| Sysmiss | 8989 |
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.