| Value | Category | Cases | |
|---|---|---|---|
| 1 | about 25% | 15 |
2.3%
|
| 2 | about 50% | 17 |
2.6%
|
| 3 | about 75% | 19 |
2.9%
|
| 4 | 100% | 599 |
92.2%
|
| Sysmiss | 1312 |