National Income Dynamics Study Secure Data 2012
Wave 3
South Africa, 2012
Get Microdata
Reference ID
zaf-saldru-nidssd-2012-v3.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
Aug 24, 2018
Last modified
Feb 19, 2026
Page views
316533
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- Data files
- Admin_W3_Secure_V3.0.0_metadata
- Adult_W3_Secure_V3.0.0_metadata
- Child_W3_Secure_V3.0.0_metadata
- hhderived_W3_Secure_V3.0.0_metadata
- HHQuestionnaire_W3_Secure_V3.0.0_metadata
- HouseholdRoster_W3_Secure_V3.0.0_metadata
- indderived_W3_Secure_V3.0.0_metadata
- Link_File_W3_Secure_V3.0.0_metadata
- Proxy_W3_Secure_V3.0.0_metadata
j17 - Year in which respondent's vision was last tested (w3_a_hlvistest)
Data file: Adult_W3_Secure_V3.0.0_metadata
Overview
Valid:
18689
Invalid:
3768
Type:
Discrete
Decimal:
0
loc_start_pos:
3786
loc_end_pos:
3789
Width:
4
Range:
-3 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| -3 | 1 |
0%
|
|
| 2000 | 78 |
0.4%
|
|
| 2001 | 42 |
0.2%
|
|
| 2002 | 47 |
0.3%
|
|
| 2003 | 48 |
0.3%
|
|
| 2004 | 80 |
0.4%
|
|
| 2005 | 100 |
0.5%
|
|
| 2006 | 111 |
0.6%
|
|
| 2007 | 147 |
0.8%
|
|
| 2008 | 264 |
1.4%
|
|
| 2009 | 398 |
2.1%
|
|
| 2010 | 908 |
4.9%
|
|
| 2011 | 1485 |
7.9%
|
|
| 2012 | 1289 |
6.9%
|
|
| 3333 | Missing | 1 |
0%
|
| 5555 | Can't remember | 2140 |
11.5%
|
| 7777 | Never | 11361 |
60.8%
|
| 8888 | Refused | 6 |
0%
|
| 9999 | Don't know | 183 |
1%
|
| Sysmiss | 3768 |
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.