| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Per week | 40 |
3.2%
|
| 2 | 2. Per 2 weeks | 105 |
8.4%
|
| 3 | 3. Per month | 92 |
7.4%
|
| 4 | 4.Per 2 months | 47 |
3.8%
|
| 5 | 53 |
4.2%
|
|
| 6 | 703 |
56.2%
|
|
| 7 | 211 |
16.9%
|
|
| Sysmiss | 5330 |