| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 1798 |
31.8%
|
| 2 | 1-2 | 1593 |
28.2%
|
| 3 | 3-4 | 1006 |
17.8%
|
| 4 | 5-6 | 436 |
7.7%
|
| 5 | Every day | 817 |
14.5%
|
| Sysmiss | 73 |