| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 103 |
4.8%
|
| 2 | Increased | 47 |
2.2%
|
| 3 | Unchanged | 1800 |
84.1%
|
| 4 | Decreased | 110 |
5.1%
|
| 5 | Initially changed but has now returned to normal | 79 |
3.7%
|
| 98 | I do not know | 2 |
0.1%
|
| 99 | Refused | 0 |
0%
|
| Sysmiss | 1 |