| Value | Category | Cases | |
|---|---|---|---|
| 2 | 1 |
0.1%
|
|
| 4 | 1 |
0.1%
|
|
| 5 | 1 |
0.1%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 10 or more days | 3 |
0.2%
|
| 30 | Almost every day | 3 |
0.2%
|
| Sysmiss | 1899 |
99.5%
|