| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 28 |
2.5%
|
| 2 | Increased | 112 |
9.8%
|
| 3 | Unchanged | 860 |
75.5%
|
| 4 | Decreased | 68 |
6%
|
| 5 | Initially changed but has now returned to normal | 66 |
5.8%
|
| 98 | I do not know | 5 |
0.4%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 1176 |