| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily | 444 |
29.6%
|
| 2 | Weekly | 26 |
1.7%
|
| 3 | Monthly | 1 |
0.1%
|
| 4 | Once or twice | 6 |
0.4%
|
| 5 | Never | 20 |
1.3%
|
| Sysmiss | 1001 |
66.8%
|