| Value | Category | Cases | |
|---|---|---|---|
| 1 | 15 |
3.9%
|
|
| 2 | 305 |
80.3%
|
|
| 3 | 53 |
13.9%
|
|
| 4 | 1 |
0.3%
|
|
| 5 | 1 |
0.3%
|
|
| 6 | 1 |
0.3%
|
|
| 8 | 2 |
0.5%
|
|
| 9 | 2 |
0.5%
|
|
| Sysmiss | 20 |