| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 25 |
1.5%
|
| 2 | Increased | 92 |
5.6%
|
| 3 | Unchanged | 1274 |
77.7%
|
| 4 | Decreased | 138 |
8.4%
|
| 5 | Initially changed but has now returned to normal | 104 |
6.3%
|
| 98 | I do not know | 6 |
0.4%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 676 |