| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 0 | Never | 590 |
49.2%
|
| 1 | Just once or twice | 170 |
14.2%
|
| 2 | Several times | 206 |
17.2%
|
| 3 | Many times | 130 |
10.8%
|
| 4 | Always | 104 |
8.7%
|
| 9 | Don't Know [DNR] | 0 |
0%
|
| 998 | Refused | 0 |
0%
|