| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 631 |
35%
|
| 2 | 1 | 1078 |
59.9%
|
| 3 | 2 | 71 |
3.9%
|
| 4 | 3 | 21 |
1.2%
|
| Sysmiss | 74 |