National Income Dynamics Study 2017, Wave 5
South Africa, 2017
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Reference ID
zaf-saldru-nids-2017-v1.0.0
Producer(s)
Southern Africa Labour and Development Research Unit,
Collections
Created on
Aug 28, 2018
Last modified
Jun 11, 2023
Page views
1509675
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j17 - Year in which respondent's vision was last tested (w5_a_hlvistest)
Data file: adult_w5_anon_v1.0.0
Overview
Valid:
816
Invalid:
183
Type:
Discrete
Decimal:
0
loc_start_pos:
2954
loc_end_pos:
2957
Width:
4
Range:
11 - 9999
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 11 | Other (specify) | 0 |
0%
|
| 2000 | 1 |
0.1%
|
|
| 2004 | 2 |
0.2%
|
|
| 2005 | 3 |
0.4%
|
|
| 2006 | 1 |
0.1%
|
|
| 2007 | 1 |
0.1%
|
|
| 2008 | 2 |
0.2%
|
|
| 2009 | 4 |
0.5%
|
|
| 2010 | 6 |
0.7%
|
|
| 2011 | 1 |
0.1%
|
|
| 2012 | 6 |
0.7%
|
|
| 2013 | 15 |
1.8%
|
|
| 2014 | 22 |
2.7%
|
|
| 2015 | 47 |
5.8%
|
|
| 2016 | 109 |
13.4%
|
|
| 2017 | 57 |
7%
|
|
| 3333 | Missing | 0 |
0%
|
| 5555 | Can't remember | 111 |
13.6%
|
| 7777 | Never | 424 |
52%
|
| 8888 | Refused | 0 |
0%
|
| 9999 | Don't know | 4 |
0.5%
|
| Sysmiss | 183 |
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.