| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2 |
1.3%
|
|
| 12 | 1 |
0.7%
|
|
| 13 | 6 |
3.9%
|
|
| 14 | 1 |
0.7%
|
|
| 15 | 4 |
2.6%
|
|
| 16 | 29 |
19.1%
|
|
| 17 | 101 |
66.4%
|
|
| 18 | 8 |
5.3%
|
|
| Sysmiss | 812 |