| Value | Category | Cases | |
|---|---|---|---|
| 0 | not at all | 1773 |
58%
|
| 1 | several days | 976 |
31.9%
|
| 2 | more than half the days | 184 |
6%
|
| 3 | nearly every day | 121 |
4%
|
| 99 | refused to answer | 1 |
0%
|