| Value | Category | Cases | |
|---|---|---|---|
| 0 | Never | 603 |
99.3%
|
| 1 | Monthly | 0 |
0%
|
| 2 | 2 to 4 times a month | 4 |
0.7%
|
| 3 | 2 to 3 times a week | 0 |
0%
|
| 4 | 4 or more times a week | 0 |
0%
|
| Sysmiss | 974 |