| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1129 |
34.9%
|
|
| 1 | 1636 |
50.6%
|
|
| 2 | 333 |
10.3%
|
|
| 3 | 51 |
1.6%
|
|
| 4 | 2 |
0.1%
|
|
| 9 | 81 |
2.5%
|
|
| Sysmiss | 9004 |