| Value | Category | Cases | |
|---|---|---|---|
| 3 | 1 |
0.3%
|
|
| 15 | 6 |
1.5%
|
|
| 16 | 113 |
28.5%
|
|
| 17 | 270 |
68.2%
|
|
| 18 | 6 |
1.5%
|
|
| Sysmiss | 4 |