National Income Dynamics Study 2017, Wave 5
South Africa, 2017
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Reference ID
zaf-saldru-nids-2017-v1.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
Aug 28, 2018
Last modified
Jun 11, 2023
Page views
1512300
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d6 - Mother's year of birth (w5_a_mthbrthy)
Data file: adult_w5_anon_v1.0.0
Overview
Valid:
531
Invalid:
468
Type:
Discrete
Decimal:
0
loc_start_pos:
591
loc_end_pos:
594
Width:
4
Range:
1917 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1917 | 1 |
0.2%
|
|
| 1918 | 1 |
0.2%
|
|
| 1919 | 2 |
0.4%
|
|
| 1921 | 2 |
0.4%
|
|
| 1922 | 4 |
0.8%
|
|
| 1923 | 3 |
0.6%
|
|
| 1925 | 6 |
1.1%
|
|
| 1926 | 4 |
0.8%
|
|
| 1927 | 4 |
0.8%
|
|
| 1928 | 6 |
1.1%
|
|
| 1929 | 3 |
0.6%
|
|
| 1930 | 2 |
0.4%
|
|
| 1932 | 1 |
0.2%
|
|
| 1933 | 8 |
1.5%
|
|
| 1934 | 4 |
0.8%
|
|
| 1935 | 2 |
0.4%
|
|
| 1936 | 2 |
0.4%
|
|
| 1937 | 5 |
0.9%
|
|
| 1938 | 6 |
1.1%
|
|
| 1939 | 3 |
0.6%
|
|
| 1940 | 1 |
0.2%
|
|
| 1941 | 3 |
0.6%
|
|
| 1942 | 10 |
1.9%
|
|
| 1943 | 3 |
0.6%
|
|
| 1944 | 3 |
0.6%
|
|
| 1945 | 3 |
0.6%
|
|
| 1946 | 4 |
0.8%
|
|
| 1947 | 4 |
0.8%
|
|
| 1948 | 10 |
1.9%
|
|
| 1949 | 3 |
0.6%
|
|
| 1950 | 10 |
1.9%
|
|
| 1951 | 5 |
0.9%
|
|
| 1952 | 8 |
1.5%
|
|
| 1953 | 3 |
0.6%
|
|
| 1954 | 6 |
1.1%
|
|
| 1955 | 10 |
1.9%
|
|
| 1956 | 14 |
2.6%
|
|
| 1957 | 3 |
0.6%
|
|
| 1958 | 6 |
1.1%
|
|
| 1959 | 9 |
1.7%
|
|
| 1960 | 4 |
0.8%
|
|
| 1961 | 5 |
0.9%
|
|
| 1962 | 8 |
1.5%
|
|
| 1963 | 8 |
1.5%
|
|
| 1964 | 7 |
1.3%
|
|
| 1965 | 9 |
1.7%
|
|
| 1966 | 8 |
1.5%
|
|
| 1967 | 6 |
1.1%
|
|
| 1968 | 10 |
1.9%
|
|
| 1969 | 6 |
1.1%
|
|
| 1970 | 3 |
0.6%
|
|
| 1971 | 4 |
0.8%
|
|
| 1972 | 14 |
2.6%
|
|
| 1973 | 8 |
1.5%
|
|
| 1974 | 2 |
0.4%
|
|
| 1975 | 4 |
0.8%
|
|
| 1976 | 5 |
0.9%
|
|
| 1977 | 3 |
0.6%
|
|
| 1978 | 2 |
0.4%
|
|
| 1979 | 4 |
0.8%
|
|
| 1982 | 3 |
0.6%
|
|
| 1983 | 2 |
0.4%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 3 |
0.6%
|
| 9999 | Don't know | 216 |
40.7%
|
| Sysmiss | 468 |
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.