| Value | Category | Cases | |
|---|---|---|---|
| 0 | 179 |
21.3%
|
|
| 1 | 477 |
56.8%
|
|
| 2 | 124 |
14.8%
|
|
| 3 | 41 |
4.9%
|
|
| 4 | 12 |
1.4%
|
|
| 5 | 4 |
0.5%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 11 | 1 |
0.1%
|
|
| Missing value | 53 |