| Value | Category | Cases | |
|---|---|---|---|
| 0 | 544 |
71.3%
|
|
| 1 | 172 |
22.5%
|
|
| 2 | 44 |
5.8%
|
|
| 3 | 2 |
0.3%
|
|
| 4 | 1 |
0.1%
|
|
| Sysmiss | 44 |