| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.1%
|
|
| 1 | 2 |
0.1%
|
|
| 2 | 1 |
0.1%
|
|
| 4 | 2 |
0.1%
|
|
| 5 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 10 or more days | 8 |
0.4%
|
| 30 | Almost every day | 18 |
0.9%
|
| Sysmiss | 1874 |
98.2%
|