| Value | Category | Cases | |
|---|---|---|---|
| 1 | 2 |
0.5%
|
|
| 2 | 3 |
0.8%
|
|
| 3 | 23 |
6.3%
|
|
| 4 | 6 |
1.6%
|
|
| 6 | 10 |
2.7%
|
|
| 7 | 2 |
0.5%
|
|
| 9 | 5 |
1.4%
|
|
| 11 | 1 |
0.3%
|
|
| 12 | 15 |
4.1%
|
|
| Missing value | 300 |
81.7%
|