| Value | Category | Cases | |
|---|---|---|---|
| 5 | 1 |
0.1%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 10 or more days | 24 |
3.3%
|
| 30 | Everyday/Almost every day | 705 |
96.2%
|
| 99 | Missing | 2 |
0.3%
|
| Sysmiss | 724 |