| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 107 |
5%
|
| 2 | Increased | 38 |
1.8%
|
| 3 | Unchanged | 1866 |
87.2%
|
| 4 | Decreased | 57 |
2.7%
|
| 5 | Initially changed but has now returned to normal | 70 |
3.3%
|
| 98 | I do not know | 1 |
0%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 3 |