| Value | Category | Cases | |
|---|---|---|---|
| 1 | 13 | 1 |
0.3%
|
| 2 | 14 | 5 |
1.4%
|
| 3 | 15 | 7 |
2%
|
| 4 | 16 | 6 |
1.7%
|
| 5 | 17 | 1 |
0.3%
|
| Missing value | 325 |
94.2%
|