| Value | Category | Cases | |
|---|---|---|---|
| 0 | 485 |
89.6%
|
|
| 1 | 36 |
6.7%
|
|
| 2 | 12 |
2.2%
|
|
| 3 | 3 |
0.6%
|
|
| 4 | 2 |
0.4%
|
|
| 5 | 3 |
0.6%
|
|
| Sysmiss | 20 |