| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6063 |
25.3%
|
|
| 1 | 2238 |
9.3%
|
|
| 2 | 15674 |
65.3%
|
|
| 9 | 20 |
0.1%
|
|
| Sysmiss | 33956 |