National Income Dynamics Study 2017, Wave 5 Secure Data
South Africa, 2017
Southern Africa Labour and Development Research Unit,
Created on
August 29, 2018
Last modified
August 29, 2018
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c2_6_y1 - Date of birth (year) of child 1 (w5_a_bhdob_y1)
Data file: adult_w5_secure_v1.0.0
Overview
Valid:
11105
Invalid:
19005
Type:
discrete
Decimal:
0
loc_width:
4
var_range:
1938 - 9999
var_format:
numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1938 | 1 |
0%
|
|
| 1941 | 4 |
0%
|
|
| 1942 | 1 |
0%
|
|
| 1943 | 2 |
0%
|
|
| 1944 | 2 |
0%
|
|
| 1945 | 1 |
0%
|
|
| 1946 | 2 |
0%
|
|
| 1947 | 3 |
0%
|
|
| 1948 | 8 |
0.1%
|
|
| 1949 | 6 |
0.1%
|
|
| 1950 | 8 |
0.1%
|
|
| 1951 | 7 |
0.1%
|
|
| 1952 | 18 |
0.2%
|
|
| 1953 | 7 |
0.1%
|
|
| 1954 | 16 |
0.1%
|
|
| 1955 | 23 |
0.2%
|
|
| 1956 | 24 |
0.2%
|
|
| 1957 | 25 |
0.2%
|
|
| 1958 | 44 |
0.4%
|
|
| 1959 | 37 |
0.3%
|
|
| 1960 | 53 |
0.5%
|
|
| 1961 | 38 |
0.3%
|
|
| 1962 | 67 |
0.6%
|
|
| 1963 | 62 |
0.6%
|
|
| 1964 | 75 |
0.7%
|
|
| 1965 | 81 |
0.7%
|
|
| 1966 | 89 |
0.8%
|
|
| 1967 | 75 |
0.7%
|
|
| 1968 | 99 |
0.9%
|
|
| 1969 | 89 |
0.8%
|
|
| 1970 | 110 |
1%
|
|
| 1971 | 88 |
0.8%
|
|
| 1972 | 128 |
1.2%
|
|
| 1973 | 136 |
1.2%
|
|
| 1974 | 143 |
1.3%
|
|
| 1975 | 152 |
1.4%
|
|
| 1976 | 167 |
1.5%
|
|
| 1977 | 164 |
1.5%
|
|
| 1978 | 155 |
1.4%
|
|
| 1979 | 154 |
1.4%
|
|
| 1980 | 151 |
1.4%
|
|
| 1981 | 161 |
1.4%
|
|
| 1982 | 226 |
2%
|
|
| 1983 | 172 |
1.5%
|
|
| 1984 | 169 |
1.5%
|
|
| 1985 | 194 |
1.7%
|
|
| 1986 | 163 |
1.5%
|
|
| 1987 | 151 |
1.4%
|
|
| 1988 | 161 |
1.4%
|
|
| 1989 | 179 |
1.6%
|
|
| 1990 | 174 |
1.6%
|
|
| 1991 | 177 |
1.6%
|
|
| 1992 | 180 |
1.6%
|
|
| 1993 | 174 |
1.6%
|
|
| 1994 | 190 |
1.7%
|
|
| 1995 | 200 |
1.8%
|
|
| 1996 | 195 |
1.8%
|
|
| 1997 | 205 |
1.8%
|
|
| 1998 | 199 |
1.8%
|
|
| 1999 | 202 |
1.8%
|
|
| 2000 | 229 |
2.1%
|
|
| 2001 | 207 |
1.9%
|
|
| 2002 | 223 |
2%
|
|
| 2003 | 235 |
2.1%
|
|
| 2004 | 271 |
2.4%
|
|
| 2005 | 287 |
2.6%
|
|
| 2006 | 298 |
2.7%
|
|
| 2007 | 320 |
2.9%
|
|
| 2008 | 336 |
3%
|
|
| 2009 | 296 |
2.7%
|
|
| 2010 | 300 |
2.7%
|
|
| 2011 | 315 |
2.8%
|
|
| 2012 | 328 |
3%
|
|
| 2013 | 318 |
2.9%
|
|
| 2014 | 313 |
2.8%
|
|
| 2015 | 316 |
2.8%
|
|
| 2016 | 312 |
2.8%
|
|
| 2017 | 147 |
1.3%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 2 |
0%
|
| 9999 | Don't know | 65 |
0.6%
|
| Sysmiss | 19005 |
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.