| Value | Category | Cases | |
|---|---|---|---|
| 1 | about 25% | 32 |
3.2%
|
| 2 | about 50% | 35 |
3.5%
|
| 3 | about 75% | 38 |
3.8%
|
| 4 | 100% | 894 |
89.5%
|
| Sysmiss | 963 |