| Value | Category | Cases | |
|---|---|---|---|
| 0 | 296 |
68.4%
|
|
| 1 | 111 |
25.6%
|
|
| 2 | 17 |
3.9%
|
|
| 3 | 7 |
1.6%
|
|
| 4 | 1 |
0.2%
|
|
| 7 | 1 |
0.2%
|
|
| Sysmiss | 280 |