| Value | Category | Cases | |
|---|---|---|---|
| 6 | 4 |
1.6%
|
|
| 7 | 12 |
4.7%
|
|
| 8 | 34 |
13.2%
|
|
| 9 | 48 |
18.7%
|
|
| 10 | 41 |
16%
|
|
| 11 | 17 |
6.6%
|
|
| 12 | 23 |
8.9%
|
|
| 13 | 22 |
8.6%
|
|
| 14 | 30 |
11.7%
|
|
| 15 | 13 |
5.1%
|
|
| 16 | 10 |
3.9%
|
|
| 17 | 1 |
0.4%
|
|
| 19 | 1 |
0.4%
|
|
| 88 | Don't know | 0 |
0%
|
| 99 | Missing | 1 |
0.4%
|
| Sysmiss | 2921 |