| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -77 | Does not apply | 0 |
0%
|
| -9 | Don't know (spontaneous) | 18 |
8.5%
|
| -7 | Does not apply (spontaneous) | 157 |
73.7%
|
| 1 | Increase | 1 |
0.5%
|
| 2 | Remain the same | 26 |
12.2%
|
| 3 | Decrease | 11 |
5.2%
|
| Sysmiss | 145 |