| Value | Category | Cases | |
|---|---|---|---|
| 1 | 29 |
8.5%
|
|
| 2 | 180 |
52.8%
|
|
| 3 | 9 |
2.6%
|
|
| 4 | 42 |
12.3%
|
|
| 5 | 7 |
2.1%
|
|
| 7 | 3 |
0.9%
|
|
| 8 | 71 |
20.8%
|
|
| Sysmiss | 1997 |