| Value | Category | Cases | |
|---|---|---|---|
| 0 | 254 |
41.2%
|
|
| 1 | 317 |
51.5%
|
|
| 2 | 27 |
4.4%
|
|
| 3 | 10 |
1.6%
|
|
| 4 | 4 |
0.6%
|
|
| 5 | 2 |
0.3%
|
|
| 7 | 2 |
0.3%
|
|
| Sysmiss | 5611 |