| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 185 |
6%
|
| 2 | Increased | 361 |
11.7%
|
| 3 | Unchanged | 1919 |
62.2%
|
| 4 | Decreased | 463 |
15%
|
| 5 | Initially changed but has now returned to normal | 153 |
5%
|
| 98 | I do not know | 1 |
0%
|
| 99 | Refused | 1 |
0%
|
| Sysmiss | 6 |