| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
0.6%
|
|
| 1 | 96 |
17.8%
|
|
| 2 | 299 |
55.4%
|
|
| 3 | 73 |
13.5%
|
|
| 4 | 38 |
7%
|
|
| 5 | 17 |
3.1%
|
|
| 6 | 10 |
1.9%
|
|
| 7 | 2 |
0.4%
|
|
| 8 | 1 |
0.2%
|
|
| 20 | 1 |
0.2%
|
|
| Missing value | 7 |