| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or, once or more per week | 62 |
0.6%
|
| 2 | Once or twice per month | 126 |
1.3%
|
| 3 | Rarely | 801 |
8.3%
|
| 4 | Never | 8537 |
88.5%
|
| 9 | 121 |
1.3%
|
|
| Sysmiss | 2362 |