| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 |
0.2%
|
|
| 1 | 708 |
5.7%
|
|
| 2 | 2199 |
17.7%
|
|
| 3 | 3165 |
25.5%
|
|
| 4 | 1987 |
16%
|
|
| 5 | 1302 |
10.5%
|
|
| 6 | 444 |
3.6%
|
|
| 7 | 2580 |
20.8%
|
|
| 9 | Don't know | 25 |
0.2%
|