| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 22 |
1.1%
|
| 2 | Increased | 135 |
6.9%
|
| 3 | Unchanged | 1562 |
79.9%
|
| 4 | Decreased | 112 |
5.7%
|
| 5 | Initially changed but has now returned to normal | 120 |
6.1%
|
| 98 | I do not know | 5 |
0.3%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 359 |