| Value | Category | Cases | |
|---|---|---|---|
| 0 | 73 |
24.7%
|
|
| 1 | 180 |
61%
|
|
| 2 | 35 |
11.9%
|
|
| 3 | 6 |
2%
|
|
| 4 | 1 |
0.3%
|
|
| Sysmiss | 2520 |