| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 1642 |
91.2%
|
| 2 | 1 | 150 |
8.3%
|
| 3 | 2 | 8 |
0.4%
|
| 4 | 4 | 1 |
0.1%
|
| Sysmiss | 74 |