| Value | Category | Cases | |
|---|---|---|---|
| 0 | 2258 |
37.6%
|
|
| 1 | 489 |
8.1%
|
|
| 2 | 937 |
15.6%
|
|
| 3 | 462 |
7.7%
|
|
| 4 | 174 |
2.9%
|
|
| 5 | 297 |
4.9%
|
|
| 6 | 72 |
1.2%
|
|
| 7 | 1321 |
22%
|
|
| 77 | Don't know | 3 |
0%
|