| Value | Category | Cases | |
|---|---|---|---|
| 0 | 43 |
1.3%
|
|
| 1 | 268 |
8.1%
|
|
| 2 | 424 |
12.8%
|
|
| 3 | 693 |
20.9%
|
|
| 4 | 479 |
14.5%
|
|
| 5 | 384 |
11.6%
|
|
| 6 | 272 |
8.2%
|
|
| 7 | 743 |
22.4%
|
|
| 9 | Don't know | 4 |
0.1%
|