| Value | Category | Cases | |
|---|---|---|---|
| 0 | 76 |
26.6%
|
|
| 1 | 146 |
51%
|
|
| 2 | 46 |
16.1%
|
|
| 3 | 11 |
3.8%
|
|
| 4 | 4 |
1.4%
|
|
| 6 | 1 |
0.3%
|
|
| 12 | 2 |
0.7%
|
|
| Sysmiss | 3 |