| Value | Category | Cases | |
|---|---|---|---|
| 0 | 21 |
0.4%
|
|
| 1 | 47 |
0.8%
|
|
| 2 | 172 |
3.1%
|
|
| 3 | 255 |
4.6%
|
|
| 4 | 479 |
8.6%
|
|
| 5 | 797 |
14.2%
|
|
| 6 | 482 |
8.6%
|
|
| 7 | 3312 |
59.2%
|
|
| 77 | Don't know | 28 |
0.5%
|