| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 34 |
1.4%
|
| 1 | Once a year or less | 57 |
2.4%
|
| 2 | Every two or three months | 94 |
3.9%
|
| 3 | Once or twice a month | 261 |
10.9%
|
| 4 | At least once a week | 310 |
12.9%
|
| 5 | When the need arises | 1643 |
68.5%
|
| Sysmiss | 606 |