| Value | Category | Cases | |
|---|---|---|---|
| 1 | Every day | 22 |
0.9%
|
| 2 | 4 or 5 times | 29 |
1.1%
|
| 3 | 2 or 3 times | 171 |
6.7%
|
| 4 | Once | 253 |
9.8%
|
| 5 | Never | 1636 |
63.7%
|
| 8 | dont't know | 1 |
0%
|
| 9 | no answer | 0 |
0%
|
| Sysmiss | 457 |
17.8%
|