| Value | Category | Cases | |
|---|---|---|---|
| 15 | 3140 |
27.5%
|
|
| 16 | 48 |
0.4%
|
|
| 17 | 7983 |
69.9%
|
|
| 18 | 95 |
0.8%
|
|
| 19 | 32 |
0.3%
|
|
| 21 | 128 |
1.1%
|
|
| Sysmiss | 8 |