| Value | Category | Cases | |
|---|---|---|---|
| -9 | REFUSED | 124 |
5.3%
|
| 1 | DOUBLE | 580 |
24.8%
|
| 2 | TRIPLE | 287 |
12.3%
|
| 3 | MORE THAN TRIPLE | 422 |
18%
|
| 4 | NO SPECIFIC INCREASE | 928 |
39.6%
|
| Sysmiss | 6815 |