| Value | Category | Cases | |
|---|---|---|---|
| 0 | 4281 |
33.1%
|
|
| 1 | 3506 |
27.1%
|
|
| 2 | 2924 |
22.6%
|
|
| 3 | 1591 |
12.3%
|
|
| 4 | 471 |
3.6%
|
|
| 5 | 113 |
0.9%
|
|
| 6 | 45 |
0.3%
|
|
| 7 | 18 |
0.1%
|
|
| 98 | don't know | 0 |
0%
|