National Income Dynamics Study 2008, Wave 1
South Africa, 2008
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Reference ID
ZAF_2008_NIDS-W1_v08_M
Producer(s)
Southern Africa Labour and Development Research Unit
Collection(s)
Metadata
Created on
Jan 27, 2012
Last modified
Aug 31, 2016
Page views
103744
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d7 - Mother's year of birth (w1_a_mthbrthy)
Data file: Adult_W1_Anon_V6.1
Overview
Valid:
11560
Invalid:
5311
Minimum:
999
Maximum:
9999
Type:
Discrete
Decimal:
0
Start:
525
End:
528
Width:
4
Range:
999 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 999 | 1 |
0%
|
|
| 1859 | 1 |
0%
|
|
| 1877 | 1 |
0%
|
|
| 1880 | 1 |
0%
|
|
| 1887 | 2 |
0%
|
|
| 1888 | 2 |
0%
|
|
| 1889 | 1 |
0%
|
|
| 1890 | 2 |
0%
|
|
| 1891 | 1 |
0%
|
|
| 1892 | 3 |
0%
|
|
| 1894 | 1 |
0%
|
|
| 1895 | 4 |
0%
|
|
| 1896 | 3 |
0%
|
|
| 1897 | 1 |
0%
|
|
| 1898 | 6 |
0.1%
|
|
| 1899 | 5 |
0%
|
|
| 1900 | 3 |
0%
|
|
| 1901 | 13 |
0.1%
|
|
| 1902 | 15 |
0.1%
|
|
| 1903 | 9 |
0.1%
|
|
| 1904 | 16 |
0.1%
|
|
| 1905 | 8 |
0.1%
|
|
| 1906 | 11 |
0.1%
|
|
| 1907 | 10 |
0.1%
|
|
| 1908 | 18 |
0.2%
|
|
| 1909 | 12 |
0.1%
|
|
| 1910 | 39 |
0.3%
|
|
| 1911 | 28 |
0.2%
|
|
| 1912 | 29 |
0.3%
|
|
| 1913 | 16 |
0.1%
|
|
| 1914 | 50 |
0.4%
|
|
| 1915 | 22 |
0.2%
|
|
| 1916 | 29 |
0.3%
|
|
| 1917 | 30 |
0.3%
|
|
| 1918 | 67 |
0.6%
|
|
| 1919 | 31 |
0.3%
|
|
| 1920 | 65 |
0.6%
|
|
| 1921 | 42 |
0.4%
|
|
| 1922 | 35 |
0.3%
|
|
| 1923 | 46 |
0.4%
|
|
| 1924 | 50 |
0.4%
|
|
| 1925 | 63 |
0.5%
|
|
| 1926 | 54 |
0.5%
|
|
| 1927 | 52 |
0.4%
|
|
| 1928 | 74 |
0.6%
|
|
| 1929 | 56 |
0.5%
|
|
| 1930 | 91 |
0.8%
|
|
| 1931 | 47 |
0.4%
|
|
| 1932 | 104 |
0.9%
|
|
| 1933 | 104 |
0.9%
|
|
| 1934 | 77 |
0.7%
|
|
| 1935 | 127 |
1.1%
|
|
| 1936 | 102 |
0.9%
|
|
| 1937 | 70 |
0.6%
|
|
| 1938 | 122 |
1.1%
|
|
| 1939 | 85 |
0.7%
|
|
| 1940 | 130 |
1.1%
|
|
| 1941 | 53 |
0.5%
|
|
| 1942 | 132 |
1.1%
|
|
| 1943 | 68 |
0.6%
|
|
| 1944 | 93 |
0.8%
|
|
| 1945 | 101 |
0.9%
|
|
| 1946 | 93 |
0.8%
|
|
| 1947 | 91 |
0.8%
|
|
| 1948 | 129 |
1.1%
|
|
| 1949 | 83 |
0.7%
|
|
| 1950 | 101 |
0.9%
|
|
| 1951 | 59 |
0.5%
|
|
| 1952 | 135 |
1.2%
|
|
| 1953 | 99 |
0.9%
|
|
| 1954 | 127 |
1.1%
|
|
| 1955 | 99 |
0.9%
|
|
| 1956 | 103 |
0.9%
|
|
| 1957 | 68 |
0.6%
|
|
| 1958 | 118 |
1%
|
|
| 1959 | 101 |
0.9%
|
|
| 1960 | 98 |
0.8%
|
|
| 1961 | 59 |
0.5%
|
|
| 1962 | 92 |
0.8%
|
|
| 1963 | 79 |
0.7%
|
|
| 1964 | 105 |
0.9%
|
|
| 1965 | 88 |
0.8%
|
|
| 1966 | 78 |
0.7%
|
|
| 1967 | 48 |
0.4%
|
|
| 1968 | 79 |
0.7%
|
|
| 1969 | 69 |
0.6%
|
|
| 1970 | 45 |
0.4%
|
|
| 1971 | 44 |
0.4%
|
|
| 1972 | 41 |
0.4%
|
|
| 1973 | 32 |
0.3%
|
|
| 1974 | 22 |
0.2%
|
|
| 1975 | 11 |
0.1%
|
|
| 1976 | 12 |
0.1%
|
|
| 1977 | 3 |
0%
|
|
| 1978 | 3 |
0%
|
|
| 1979 | 3 |
0%
|
|
| 1981 | 1 |
0%
|
|
| 1983 | 1 |
0%
|
|
| 1984 | 1 |
0%
|
|
| 1986 | 1 |
0%
|
|
| 1987 | 3 |
0%
|
|
| 1988 | 2 |
0%
|
|
| 1989 | 1 |
0%
|
|
| 1992 | 1 |
0%
|
|
| 3333 | Missing | 252 |
2.2%
|
| 5555 | Not Applicable | 0 |
0%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't Know | 6346 |
54.9%
|
| Sysmiss | 5311 |
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.