| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 129 |
17.4%
|
| 2 | 1 | 62 |
8.4%
|
| 3 | 2 | 46 |
6.2%
|
| 4 | 3 | 25 |
3.4%
|
| 5 | 4 | 9 |
1.2%
|
| 6 | 5 | 5 |
0.7%
|
| 7 | 6 | 2 |
0.3%
|
| 8 | 7 | 1 |
0.1%
|
| 9 | 8 | 1 |
0.1%
|
| Missing value | 460 |
62.2%
|