| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0.3%
|
| 0 | Never | 1014 |
84.5%
|
| 1 | Once or twice | 124 |
10.3%
|
| 2 | Several times | 44 |
3.7%
|
| 3 | Many times | 15 |
1.3%
|
| 8 | Refused | 0 |
0%
|
| 9 | Don't Know | 0 |
0%
|