| Value | Category | Cases | |
|---|---|---|---|
| 1 | Do not usually do it | 77 |
4.1%
|
| 2 | Increased | 35 |
1.8%
|
| 3 | Unchanged | 1713 |
90.4%
|
| 4 | Decreased | 22 |
1.2%
|
| 5 | Initially changed but has now returned to normal | 45 |
2.4%
|
| 98 | I do not know | 2 |
0.1%
|
| 99 | Refused | 1 |
0.1%
|
| Sysmiss | 247 |