| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
0.9%
|
|
| 1 | 185 |
87.7%
|
|
| 2 | 18 |
8.5%
|
|
| 3 | 5 |
2.4%
|
|
| 4 | 1 |
0.5%
|
|
| Sysmiss | 1645 |