| Value | Category | Cases | |
|---|---|---|---|
| 0 | 298 |
61.2%
|
|
| 1 | 127 |
26.1%
|
|
| 2 | 51 |
10.5%
|
|
| 3 | 9 |
1.8%
|
|
| 4 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| Sysmiss | 2718 |