| Value | Category | Cases | |
|---|---|---|---|
| 0 | 7828 |
30.8%
|
|
| 1 | 4811 |
18.9%
|
|
| 2 | 5887 |
23.1%
|
|
| 3 | 3728 |
14.7%
|
|
| 4 | 2075 |
8.2%
|
|
| 5 | 674 |
2.7%
|
|
| 6 | 198 |
0.8%
|
|
| 7 | 229 |
0.9%
|
|
| 98 | Don't know | 0 |
0%
|