| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 34 |
1.5%
|
| 2 | Increased | 125 |
5.5%
|
| 3 | Unchanged | 1612 |
70.6%
|
| 4 | Decreased | 381 |
16.7%
|
| 5 | Initially changed but has now returned to normal | 131 |
5.7%
|
| 98 | I do not know | 1 |
0%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 31 |