| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 1112 |
91.3%
|
| 2 | Once or twice in the past month | 35 |
2.9%
|
| 3 | About once a week | 33 |
2.7%
|
| 4 | 2 or 3 times a week | 9 |
0.7%
|
| 5 | Almost every day | 14 |
1.1%
|
| 6 | Every day | 15 |
1.2%
|
| Sysmiss | 1974 |