| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 24 |
1.9%
|
| 2 | Increased | 157 |
12.7%
|
| 3 | Unchanged | 801 |
65%
|
| 4 | Decreased | 123 |
10%
|
| 5 | Initially changed but has now returned to normal | 28 |
2.3%
|
| 98 | I do not know | 98 |
8%
|
| 99 | Refused | 1 |
0.1%
|
| Sysmiss | 2404 |