| Value | Category | Cases | |
|---|---|---|---|
| 1 | Never | 822 |
35.5%
|
| 2 | 1 to 2 | 664 |
28.6%
|
| 3 | 3 to 4 | 280 |
12.1%
|
| 4 | 5 to 6 | 107 |
4.6%
|
| 5 | 7 days | 445 |
19.2%
|
| Sysmiss | 21 |