| Value | Category | Cases | |
|---|---|---|---|
| 0 | 533 |
76.7%
|
|
| 1 | 108 |
15.5%
|
|
| 2 | 39 |
5.6%
|
|
| 3 | 11 |
1.6%
|
|
| 4 | 3 |
0.4%
|
|
| 7 | 1 |
0.1%
|
|
| Sysmiss | 5532 |