| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. Per week | 16 |
6.5%
|
| 2 | 2. Per 2 weeks | 25 |
10.1%
|
| 3 | 3. Per month | 66 |
26.6%
|
| 4 | 4.Per 2 months | 29 |
11.7%
|
| 5 | 45 |
18.1%
|
|
| 6 | 66 |
26.6%
|
|
| 7 | 1 |
0.4%
|
|
| Sysmiss | 6333 |