| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 79 |
5%
|
| 2 | Increased | 255 |
16%
|
| 3 | Unchanged | 1045 |
65.7%
|
| 4 | Decreased | 99 |
6.2%
|
| 5 | Initially changed but has now returned to normal | 69 |
4.3%
|
| 98 | I do not know | 41 |
2.6%
|
| 99 | Refused | 3 |
0.2%
|
| Sysmiss | 773 |