| Value | Category | Cases | |
|---|---|---|---|
| 0 | 248 |
7.7%
|
|
| 1 | 1. never | 266 |
8.2%
|
| 2 | 2. once | 788 |
24.4%
|
| 3 | 3. 2 to 3 times | 1929 |
59.7%
|
| 4 | 4. 4 to 5 times | 0 |
0%
|
| 5 | 5. more than 5 times | 0 |
0%
|
| Sysmiss | 1307 |