| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than once per year | 353 |
1.6%
|
| 2 | 1 time per year | 2690 |
12.2%
|
| 3 | 2 times per year | 4366 |
19.9%
|
| 4 | 3-6 times per year | 4320 |
19.7%
|
| 5 | 7-12 times per year | 1536 |
7%
|
| 6 | 2-4 times per month | 7939 |
36.1%
|
| 7 | more than 4 times per month | 772 |
3.5%
|
| Sysmiss | 12836 |