| Value | Category | Cases | |
|---|---|---|---|
| 0 | 155 |
27.1%
|
|
| 1 | 52 |
9.1%
|
|
| 2 | 71 |
12.4%
|
|
| 3 | 64 |
11.2%
|
|
| 4 | 43 |
7.5%
|
|
| 5 | 24 |
4.2%
|
|
| 6 | 4 |
0.7%
|
|
| 7 | 158 |
27.7%
|
|
| Missing value | 557 |