| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 |
0.3%
|
|
| 2 | 23 |
8%
|
|
| 3 | 6 |
2.1%
|
|
| 4 | 2 |
0.7%
|
|
| 5 | 1 |
0.3%
|
|
| 8 | 1 |
0.3%
|
|
| Missing value | 252 |
88.1%
|