| Value | Category | Cases | |
|---|---|---|---|
| 0 | 319 |
91.4%
|
|
| 1 | 8 |
2.3%
|
|
| 2 | 5 |
1.4%
|
|
| 3 | 6 |
1.7%
|
|
| 4 | 1 |
0.3%
|
|
| 7 | 3 |
0.9%
|
|
| Missing value | 7 |
2%
|