| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 383 |
16.9%
|
| 2 | Increased | 198 |
8.7%
|
| 3 | Unchanged | 1635 |
72.2%
|
| 4 | Decreased | 49 |
2.2%
|
| 5 | Initially changed but has now returned to normal | 1 |
0%
|
| 98 | I do not know | 0 |
0%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 1 |