| Value | Category | Cases | |
|---|---|---|---|
| 0 | 29 |
2.5%
|
|
| 1 | 432 |
37.3%
|
|
| 2 | 480 |
41.5%
|
|
| 3 | 157 |
13.6%
|
|
| 4 | 44 |
3.8%
|
|
| 5 | 8 |
0.7%
|
|
| 6 | 2 |
0.2%
|
|
| 7 | 1 |
0.1%
|
|
| 9 | 2 |
0.2%
|
|
| 17 | 1 |
0.1%
|
|
| 21 | 1 |
0.1%
|
|
| Missing value | 6 |