| Value | Category | Cases | |
|---|---|---|---|
| 0 | 506 |
92%
|
|
| 1 | 29 |
5.3%
|
|
| 2 | 10 |
1.8%
|
|
| 3 | 3 |
0.5%
|
|
| 9 | 1 |
0.2%
|
|
| 13 | 1 |
0.2%
|
|
| Sysmiss | 11 |