| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 1914 |
78.8%
|
| 1 | Only once | 232 |
9.6%
|
| 2 | A few times | 211 |
8.7%
|
| 3 | Often | 56 |
2.3%
|
| 9 | Don't know | 15 |
0.6%
|