| Value | Category | Cases | |
|---|---|---|---|
| 0 | 464 |
44%
|
|
| 1 | 326 |
30.9%
|
|
| 2 | 164 |
15.5%
|
|
| 3 | 76 |
7.2%
|
|
| 4 | 16 |
1.5%
|
|
| 5 | 7 |
0.7%
|
|
| 6 | 2 |
0.2%
|
|
| Sysmiss | 59 |