| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.3%
|
|
| 1 | 3 |
0.4%
|
|
| 2 | 3 |
0.4%
|
|
| 3 | 1 |
0.1%
|
|
| 4 | 1 |
0.1%
|
|
| 5 | 4 |
0.5%
|
|
| 6 | 3 |
0.4%
|
|
| 7 | 3 |
0.4%
|
|
| 8 | 3 |
0.4%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 10 days or more but less than month | 70 |
9.4%
|
| 30 | Everyday / Almost every day | 649 |
87.2%
|
| 99 | Missing | 1 |
0.1%
|
| Sysmiss | 4824 |