| Value | Category | Cases | |
|---|---|---|---|
| 0 | 459 |
20.4%
|
|
| 1 | 722 |
32.1%
|
|
| 2 | 638 |
28.4%
|
|
| 3 | 294 |
13.1%
|
|
| 4 | 93 |
4.1%
|
|
| 5 | 24 |
1.1%
|
|
| 6 | 14 |
0.6%
|
|
| 7 | 4 |
0.2%
|
|
| Missing value | 7 |