| Value | Category | Cases | |
|---|---|---|---|
| 0 | 157 |
85.3%
|
|
| 1 | 1 |
0.5%
|
|
| 4 | 1 |
0.5%
|
|
| 7 | 3 |
1.6%
|
|
| 9 | 1 |
0.5%
|
|
| 14 | 2 |
1.1%
|
|
| 15 | 1 |
0.5%
|
|
| 17 | 2 |
1.1%
|
|
| 20 | 1 |
0.5%
|
|
| 30 | 15 |
8.2%
|
|
| Sysmiss | 25 |