| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
0.1%
|
|
| 3 | 1 |
0.1%
|
|
| 5 | 3 |
0.2%
|
|
| 6 | 1 |
0.1%
|
|
| 10 | 10 or more days | 78 |
4.2%
|
| 30 | Everyday/Almost every day | 1765 |
95.3%
|
| 99 | Missing | 4 |
0.2%
|
| Sysmiss | 2865 |