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_y7 - Date of birth (year) of child 7 (w5_a_bhdob_y7)
Data file: adult_w5_secure_v1.0.0
Overview
Valid:
908
Invalid:
29202
Type:
discrete
Decimal:
0
loc_width:
4
var_range:
1959 - 9999
var_format:
numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1959 | 1 |
0.1%
|
|
| 1960 | 1 |
0.1%
|
|
| 1961 | 1 |
0.1%
|
|
| 1962 | 1 |
0.1%
|
|
| 1963 | 2 |
0.2%
|
|
| 1965 | 3 |
0.3%
|
|
| 1966 | 2 |
0.2%
|
|
| 1967 | 1 |
0.1%
|
|
| 1968 | 4 |
0.4%
|
|
| 1969 | 3 |
0.3%
|
|
| 1970 | 7 |
0.8%
|
|
| 1971 | 5 |
0.6%
|
|
| 1972 | 4 |
0.4%
|
|
| 1973 | 4 |
0.4%
|
|
| 1974 | 8 |
0.9%
|
|
| 1975 | 15 |
1.7%
|
|
| 1976 | 16 |
1.8%
|
|
| 1977 | 14 |
1.5%
|
|
| 1978 | 18 |
2%
|
|
| 1979 | 17 |
1.9%
|
|
| 1980 | 11 |
1.2%
|
|
| 1981 | 12 |
1.3%
|
|
| 1982 | 20 |
2.2%
|
|
| 1983 | 21 |
2.3%
|
|
| 1984 | 16 |
1.8%
|
|
| 1985 | 20 |
2.2%
|
|
| 1986 | 19 |
2.1%
|
|
| 1987 | 22 |
2.4%
|
|
| 1988 | 19 |
2.1%
|
|
| 1989 | 24 |
2.6%
|
|
| 1990 | 21 |
2.3%
|
|
| 1991 | 19 |
2.1%
|
|
| 1992 | 24 |
2.6%
|
|
| 1993 | 13 |
1.4%
|
|
| 1994 | 22 |
2.4%
|
|
| 1995 | 19 |
2.1%
|
|
| 1996 | 27 |
3%
|
|
| 1997 | 22 |
2.4%
|
|
| 1998 | 16 |
1.8%
|
|
| 1999 | 18 |
2%
|
|
| 2000 | 11 |
1.2%
|
|
| 2001 | 12 |
1.3%
|
|
| 2002 | 12 |
1.3%
|
|
| 2003 | 9 |
1%
|
|
| 2004 | 11 |
1.2%
|
|
| 2005 | 9 |
1%
|
|
| 2006 | 8 |
0.9%
|
|
| 2007 | 12 |
1.3%
|
|
| 2008 | 6 |
0.7%
|
|
| 2009 | 10 |
1.1%
|
|
| 2010 | 12 |
1.3%
|
|
| 2011 | 3 |
0.3%
|
|
| 2012 | 7 |
0.8%
|
|
| 2013 | 4 |
0.4%
|
|
| 2014 | 10 |
1.1%
|
|
| 2015 | 5 |
0.6%
|
|
| 2016 | 7 |
0.8%
|
|
| 2017 | 1 |
0.1%
|
|
| 3333 | Missing | 1 |
0.1%
|
| 5555 | Not Applicable | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 246 |
27.1%
|
| Sysmiss | 29202 |
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.