| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2939 |
16.5%
|
|
| 2 | 8740 |
49.1%
|
|
| 3 | 4076 |
22.9%
|
|
| 9 | 2046 |
11.5%
|
|
| Sysmiss | 152 |