| Value | Category | Cases | |
|---|---|---|---|
| 1 | about 25% | 13 |
3.8%
|
| 2 | about 50% | 15 |
4.3%
|
| 3 | about 75% | 13 |
3.8%
|
| 4 | 100% | 304 |
88.1%
|
| Sysmiss | 1617 |