| Value | Category | Cases | |
|---|---|---|---|
| 0 | 617 |
27.2%
|
|
| 1 | 442 |
19.5%
|
|
| 2 | 410 |
18%
|
|
| 3 | 310 |
13.6%
|
|
| 4 | 78 |
3.4%
|
|
| 5 | 72 |
3.2%
|
|
| 6 | 10 |
0.4%
|
|
| 7 | 332 |
14.6%
|
|
| 77 | Don't know | 1 |
0%
|