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
1728798
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d6 - Mother's year of birth (w4_a_mthbrthy)
Data file: Adult_W4_Anon_V2.0.0
Overview
Valid:
14807
Invalid:
11997
Type:
Discrete
Decimal:
0
Width:
4
Range:
-3 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| -3 | 5 |
0%
|
|
| 1884 | 1 |
0%
|
|
| 1888 | 1 |
0%
|
|
| 1890 | 1 |
0%
|
|
| 1892 | 1 |
0%
|
|
| 1896 | 3 |
0%
|
|
| 1898 | 1 |
0%
|
|
| 1899 | 1 |
0%
|
|
| 1900 | 6 |
0%
|
|
| 1901 | 6 |
0%
|
|
| 1902 | 5 |
0%
|
|
| 1903 | 4 |
0%
|
|
| 1904 | 6 |
0%
|
|
| 1905 | 8 |
0%
|
|
| 1906 | 5 |
0%
|
|
| 1907 | 9 |
0%
|
|
| 1908 | 7 |
0%
|
|
| 1909 | 9 |
0%
|
|
| 1910 | 27 |
0.1%
|
|
| 1911 | 17 |
0.1%
|
|
| 1912 | 22 |
0.1%
|
|
| 1913 | 13 |
0%
|
|
| 1914 | 44 |
0.2%
|
|
| 1915 | 15 |
0.1%
|
|
| 1916 | 24 |
0.1%
|
|
| 1917 | 27 |
0.1%
|
|
| 1918 | 86 |
0.3%
|
|
| 1919 | 21 |
0.1%
|
|
| 1920 | 65 |
0.2%
|
|
| 1921 | 50 |
0.2%
|
|
| 1922 | 42 |
0.2%
|
|
| 1923 | 52 |
0.2%
|
|
| 1924 | 45 |
0.2%
|
|
| 1925 | 89 |
0.3%
|
|
| 1926 | 73 |
0.3%
|
|
| 1927 | 78 |
0.3%
|
|
| 1928 | 93 |
0.3%
|
|
| 1929 | 72 |
0.3%
|
|
| 1930 | 129 |
0.5%
|
|
| 1931 | 66 |
0.2%
|
|
| 1932 | 133 |
0.5%
|
|
| 1933 | 136 |
0.5%
|
|
| 1934 | 102 |
0.4%
|
|
| 1935 | 140 |
0.5%
|
|
| 1936 | 144 |
0.5%
|
|
| 1937 | 115 |
0.4%
|
|
| 1938 | 136 |
0.5%
|
|
| 1939 | 133 |
0.5%
|
|
| 1940 | 213 |
0.8%
|
|
| 1941 | 78 |
0.3%
|
|
| 1942 | 178 |
0.7%
|
|
| 1943 | 111 |
0.4%
|
|
| 1944 | 141 |
0.5%
|
|
| 1945 | 149 |
0.6%
|
|
| 1946 | 129 |
0.5%
|
|
| 1947 | 137 |
0.5%
|
|
| 1948 | 185 |
0.7%
|
|
| 1949 | 143 |
0.5%
|
|
| 1950 | 206 |
0.8%
|
|
| 1951 | 128 |
0.5%
|
|
| 1952 | 233 |
0.9%
|
|
| 1953 | 217 |
0.8%
|
|
| 1954 | 210 |
0.8%
|
|
| 1955 | 228 |
0.9%
|
|
| 1956 | 224 |
0.8%
|
|
| 1957 | 202 |
0.8%
|
|
| 1958 | 206 |
0.8%
|
|
| 1959 | 199 |
0.7%
|
|
| 1960 | 194 |
0.7%
|
|
| 1961 | 157 |
0.6%
|
|
| 1962 | 247 |
0.9%
|
|
| 1963 | 239 |
0.9%
|
|
| 1964 | 241 |
0.9%
|
|
| 1965 | 252 |
0.9%
|
|
| 1966 | 203 |
0.8%
|
|
| 1967 | 188 |
0.7%
|
|
| 1968 | 216 |
0.8%
|
|
| 1969 | 211 |
0.8%
|
|
| 1970 | 164 |
0.6%
|
|
| 1971 | 121 |
0.5%
|
|
| 1972 | 175 |
0.7%
|
|
| 1973 | 139 |
0.5%
|
|
| 1974 | 138 |
0.5%
|
|
| 1975 | 140 |
0.5%
|
|
| 1976 | 162 |
0.6%
|
|
| 1977 | 105 |
0.4%
|
|
| 1978 | 70 |
0.3%
|
|
| 1979 | 65 |
0.2%
|
|
| 1980 | 48 |
0.2%
|
|
| 1981 | 42 |
0.2%
|
|
| 1982 | 44 |
0.2%
|
|
| 1983 | 15 |
0.1%
|
|
| 1984 | 7 |
0%
|
|
| 1985 | 2 |
0%
|
|
| 3333 | Missing | 20 |
0.1%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 5 |
0%
|
| 9999 | Don't know | 5412 |
20.2%
|
| Sysmiss | 11997 |
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.