| Value | Category | Cases | |
|---|---|---|---|
| 1 | about 25% | 20 |
6.4%
|
| 2 | about 50% | 15 |
4.8%
|
| 3 | about 75% | 9 |
2.9%
|
| 4 | 100% | 267 |
85.9%
|
| Sysmiss | 1651 |