National Income Dynamics Study 2008, Wave 1 Secure Data
South Africa, 2008
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Reference ID
zaf-saldru-nidssd-2008-v7.0.0
Producer(s)
Southern Africa Labour and Development Research Unit
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Created on
Aug 24, 2018
Last modified
Oct 18, 2023
Page views
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e7_1 - Biological mother's year of death (w1_c_mthdthy)
Data file: Child_W1_Secure_V7.0.0
Overview
Valid:
729
Invalid:
8875
Type:
Discrete
Decimal:
0
loc_start_pos:
960
loc_end_pos:
963
Width:
4
Range:
1993 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1993 | 1 |
0.1%
|
|
| 1994 | 2 |
0.3%
|
|
| 1995 | 3 |
0.4%
|
|
| 1996 | 5 |
0.7%
|
|
| 1997 | 6 |
0.8%
|
|
| 1998 | 12 |
1.6%
|
|
| 1999 | 14 |
1.9%
|
|
| 2000 | 25 |
3.4%
|
|
| 2001 | 20 |
2.7%
|
|
| 2002 | 40 |
5.5%
|
|
| 2003 | 52 |
7.1%
|
|
| 2004 | 70 |
9.6%
|
|
| 2005 | 113 |
15.5%
|
|
| 2006 | 82 |
11.2%
|
|
| 2007 | 109 |
15%
|
|
| 2008 | 37 |
5.1%
|
|
| 3333 | Missing | 46 |
6.3%
|
| 5555 | Not Applicable | 0 |
0%
|
| 7777 | Never Moved | 0 |
0%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 92 |
12.6%
|
| Sysmiss | 8875 |
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.