| Value | Category | Cases | |
|---|---|---|---|
| 0 | 129 |
16.6%
|
|
| 1 | 11 |
1.4%
|
|
| 2 | 3 |
0.4%
|
|
| 3 | 2 |
0.3%
|
|
| 4 | 1 |
0.1%
|
|
| 5 | 8 |
1%
|
|
| 6 | 6 |
0.8%
|
|
| Missing value | 616 |
79.4%
|