| Value | Category | Cases | |
|---|---|---|---|
| 0 | 470 |
79.5%
|
|
| 1 | 72 |
12.2%
|
|
| 2 | 23 |
3.9%
|
|
| 3 | 20 |
3.4%
|
|
| 4 | 5 |
0.8%
|
|
| 6 | 1 |
0.2%
|
|
| Sysmiss | 245 |