| Value | Category | Cases | |
|---|---|---|---|
| -999 | Don't know | 0 |
0%
|
| -888 | Refuse to answer | 0 |
0%
|
| -777 | Not applicable | 0 |
0%
|
| -666 | Other (please specify) | 62 |
3.2%
|
| 1 | Day | 389 |
20.3%
|
| 2 | Week | 402 |
21%
|
| 3 | Two weeks | 112 |
5.9%
|
| 4 | Month | 929 |
48.6%
|
| 5 | Year | 18 |
0.9%
|
| 11 | .R | 265 | |
| Sysmiss | 2 |