| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6063 |
25.3%
|
|
| 1 | 12170 |
50.7%
|
|
| 2 | 5745 |
23.9%
|
|
| 9 | 17 |
0.1%
|
|
| Sysmiss | 33956 |