| Value | Category | Cases | |
|---|---|---|---|
| 1 | did not miss è | 1974 |
64.1%
|
| 2 | only a few days | 904 |
29.4%
|
| 3 | from 1 week to 1 month | 173 |
5.6%
|
| 4 | from 1 month to several months | 29 |
0.9%
|
| 11 | .A | 13394 |