| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.3%
|
|
| 1 | 573 |
85.5%
|
|
| 2 | 78 |
11.6%
|
|
| 3 | 13 |
1.9%
|
|
| 4 | 4 |
0.6%
|
|
| Sysmiss | 9012 |