| Value | Category | Cases | |
|---|---|---|---|
| 0 | 217 |
42.4%
|
|
| 1 | 36 |
7%
|
|
| 2 | 9 |
1.8%
|
|
| 3 | 3 |
0.6%
|
|
| 4 | 3 |
0.6%
|
|
| 5 | 2 |
0.4%
|
|
| 7 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 1 |
0.2%
|
|
| Missing value | 239 |
46.7%
|