| Value | Category | Cases | |
|---|---|---|---|
| 1 | about 25% | 22 |
7.9%
|
| 2 | about 50% | 6 |
2.1%
|
| 3 | about 75% | 9 |
3.2%
|
| 4 | 100% | 243 |
86.8%
|
| Sysmiss | 1682 |