| Value | Category | Cases | |
|---|---|---|---|
| 1 | 3 |
0.5%
|
|
| 2 | 5 |
0.8%
|
|
| 3 | 5 |
0.8%
|
|
| 4 | 2 |
0.3%
|
|
| 5 | 5 |
0.8%
|
|
| 6 | 2 |
0.3%
|
|
| 7 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| 12 | 2 |
0.3%
|
|
| 15 | 1 |
0.2%
|
|
| Missing value | 567 |
95.3%
|