| Value | Category | Cases | |
|---|---|---|---|
| 0 | 83 |
9.7%
|
|
| 1 | 508 |
59.1%
|
|
| 2 | 181 |
21%
|
|
| 3 | 64 |
7.4%
|
|
| 4 | 13 |
1.5%
|
|
| 5 | 5 |
0.6%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 11 | 2 |
0.2%
|
|
| 12 | 1 |
0.1%
|
|
| 24 | 1 |
0.1%
|
|
| Missing value | 33 |