| Value | Category | Cases | |
|---|---|---|---|
| 0 | 75 |
3.7%
|
|
| 1 | 437 |
21.3%
|
|
| 2 | 447 |
21.8%
|
|
| 3 | 363 |
17.7%
|
|
| 4 | 148 |
7.2%
|
|
| 5 | 88 |
4.3%
|
|
| 6 | 50 |
2.4%
|
|
| 7 | 379 |
18.5%
|
|
| 77 | Don't know | 61 |
3%
|