| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1473 |
11.8%
|
|
| 1 | 9741 |
77.8%
|
|
| 2 | 1204 |
9.6%
|
|
| 3 | 47 |
0.4%
|
|
| 4 | 55 |
0.4%
|
|
| Sysmiss | 4721 |