| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 79 |
4.1%
|
| 2 | Increased | 49 |
2.6%
|
| 3 | Unchanged | 1712 |
89.4%
|
| 4 | Decreased | 22 |
1.1%
|
| 5 | Initially changed but has now returned to normal | 48 |
2.5%
|
| 98 | I do not know | 4 |
0.2%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 228 |