National Income Dynamics Study 2008, Wave 1 Secure Data
South Africa, 2008
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Reference ID
zaf-saldru-nidssd-2008-v7.0.0
Producer(s)
Southern Africa Labour and Development Research Unit
Collections
Created on
Aug 24, 2018
Last modified
Oct 18, 2023
Page views
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e13_1 - Mother's year of birth (w1_c_mthbrthy)
Data file: Child_W1_Secure_V7.0.0
Overview
Valid:
2738
Invalid:
6866
Type:
Discrete
Decimal:
0
loc_start_pos:
976
loc_end_pos:
979
Width:
4
Range:
1938 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1938 | 1 |
0%
|
|
| 1940 | 1 |
0%
|
|
| 1943 | 1 |
0%
|
|
| 1945 | 1 |
0%
|
|
| 1947 | 2 |
0.1%
|
|
| 1950 | 5 |
0.2%
|
|
| 1952 | 2 |
0.1%
|
|
| 1953 | 2 |
0.1%
|
|
| 1954 | 8 |
0.3%
|
|
| 1955 | 5 |
0.2%
|
|
| 1956 | 9 |
0.3%
|
|
| 1957 | 12 |
0.4%
|
|
| 1958 | 6 |
0.2%
|
|
| 1959 | 16 |
0.6%
|
|
| 1960 | 22 |
0.8%
|
|
| 1961 | 13 |
0.5%
|
|
| 1962 | 19 |
0.7%
|
|
| 1963 | 23 |
0.8%
|
|
| 1964 | 24 |
0.9%
|
|
| 1965 | 32 |
1.2%
|
|
| 1966 | 34 |
1.2%
|
|
| 1967 | 37 |
1.4%
|
|
| 1968 | 53 |
1.9%
|
|
| 1969 | 54 |
2%
|
|
| 1970 | 46 |
1.7%
|
|
| 1971 | 55 |
2%
|
|
| 1972 | 61 |
2.2%
|
|
| 1973 | 90 |
3.3%
|
|
| 1974 | 82 |
3%
|
|
| 1975 | 115 |
4.2%
|
|
| 1976 | 105 |
3.8%
|
|
| 1977 | 83 |
3%
|
|
| 1978 | 87 |
3.2%
|
|
| 1979 | 76 |
2.8%
|
|
| 1980 | 76 |
2.8%
|
|
| 1981 | 65 |
2.4%
|
|
| 1982 | 71 |
2.6%
|
|
| 1983 | 65 |
2.4%
|
|
| 1984 | 45 |
1.6%
|
|
| 1985 | 43 |
1.6%
|
|
| 1986 | 30 |
1.1%
|
|
| 1987 | 22 |
0.8%
|
|
| 1988 | 15 |
0.5%
|
|
| 1989 | 9 |
0.3%
|
|
| 1990 | 5 |
0.2%
|
|
| 1995 | 2 |
0.1%
|
|
| 1998 | 1 |
0%
|
|
| 3333 | Missing | 145 |
5.3%
|
| 5555 | Not Applicable | 0 |
0%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 962 |
35.1%
|
| Sysmiss | 6866 |
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.