| Value | Category | Cases | |
|---|---|---|---|
| 0 | 11 |
3.4%
|
|
| 1 | 144 |
44%
|
|
| 2 | 140 |
42.8%
|
|
| 3 | 22 |
6.7%
|
|
| 4 | 9 |
2.8%
|
|
| 6 | 1 |
0.3%
|
|
| Sysmiss | 2592 |