National Income Dynamics Study 2010-2011, Wave 2 Secure Data
South Africa, 2010 - 2011
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Reference ID
zaf-saldru-nidssd-2010-2011-v4.0.0
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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b1_m - Date of birth (month) (w2_a_dob_m)
Data file: Adult_W2_Secure_V4.0.0
Overview
Valid:
17626
Invalid:
4248
Type:
Discrete
Decimal:
0
loc_start_pos:
41
loc_end_pos:
42
Width:
2
Range:
1 - 99
Format:
Numeric
Questions and instructions
Categories
| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. January | 1574 |
8.9%
|
| 2 | 2. February | 1335 |
7.6%
|
| 3 | 3. March | 1497 |
8.5%
|
| 4 | 4. April | 1479 |
8.4%
|
| 5 | 5. May | 1464 |
8.3%
|
| 6 | 6. June | 1640 |
9.3%
|
| 7 | 7. July | 1461 |
8.3%
|
| 8 | 8. August | 1487 |
8.4%
|
| 9 | 9. September | 1523 |
8.6%
|
| 10 | 10. October | 1370 |
7.8%
|
| 11 | 11. November | 1299 |
7.4%
|
| 12 | 12. December | 1464 |
8.3%
|
| 33 | 33. Missing | 1 |
0%
|
| 55 | 55. Not applicable | 0 |
0%
|
| 88 | 88. Refused | 10 |
0.1%
|
| 99 | 99. Don't know | 22 |
0.1%
|
| Sysmiss | 4248 |
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.