| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4147 |
20.9%
|
|
| 1 | 5073 |
25.6%
|
|
| 2 | 10476 |
52.8%
|
|
| 8 | 136 |
0.7%
|
|
| Sysmiss | 228 |