| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 18 |
1.4%
|
| 2 | Increased | 28 |
2.2%
|
| 3 | Unchanged | 1055 |
81.9%
|
| 4 | Decreased | 88 |
6.8%
|
| 5 | Initially changed but has now returned to normal | 70 |
5.4%
|
| 98 | I do not know | 29 |
2.3%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 1027 |