| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 107 |
4.7%
|
| 2 | Increased | 418 |
18.5%
|
| 3 | Unchanged | 1393 |
61.7%
|
| 4 | Decreased | 180 |
8%
|
| 5 | Initially changed but has now returned to normal | 134 |
5.9%
|
| 98 | I do not know | 17 |
0.8%
|
| 99 | Refused | 7 |
0.3%
|
| Sysmiss | 833 |