| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 464 |
11.8%
|
| 2 | 2 | 273 |
7%
|
| 3 | 3 | 303 |
7.7%
|
| 4 | 4 | 320 |
8.2%
|
| 5 | 5 | 471 |
12%
|
| 6 | 6 | 330 |
8.4%
|
| 7 | 7 | 210 |
5.4%
|
| 8 | 8 | 312 |
8%
|
| 9 | 9 | 187 |
4.8%
|
| 10 | 10 | 261 |
6.7%
|
| 11 | 11 | 194 |
4.9%
|
| 12 | 12 | 237 |
6%
|
| 98 | Don't know | 362 |
9.2%
|