| Value | Category | Cases | |
|---|---|---|---|
| 12 | 2464 |
10.4%
|
|
| 13 | 6 |
0%
|
|
| 15 | 362 |
1.5%
|
|
| 18 | 20634 |
87.4%
|
|
| Missing value | 137 |
0.6%
|