| Value | Category | Cases | |
|---|---|---|---|
| 1 | did not miss è | 2485 |
69.2%
|
| 2 | only a few days | 986 |
27.4%
|
| 3 | from 1 week to 1 month | 109 |
3%
|
| 4 | from 1 month to several months | 12 |
0.3%
|
| Sysmiss | 15640 |