| Value | Category | Cases | |
|---|---|---|---|
| 1 | Daily or almost daily | 6 |
0.2%
|
| 2 | Weekly | 45 |
1.7%
|
| 3 | Monthly | 75 |
2.8%
|
| 4 | Less than monthly | 274 |
10.4%
|
| 5 | Never | 2241 |
84.9%
|
| Sysmiss | 1997 |