| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1330 |
23.8%
|
|
| 1 | 930 |
16.6%
|
|
| 2 | 1259 |
22.5%
|
|
| 3 | 688 |
12.3%
|
|
| 4 | 440 |
7.9%
|
|
| 5 | 327 |
5.8%
|
|
| 6 | 69 |
1.2%
|
|
| 7 | 301 |
5.4%
|
|
| 77 | Don't know | 249 |
4.5%
|