| Value | Category | Cases | |
|---|---|---|---|
| 12 | 2 |
2.2%
|
|
| 13 | 1 |
1.1%
|
|
| 14 | 3 |
3.4%
|
|
| 15 | 4 |
4.5%
|
|
| 16 | 4 |
4.5%
|
|
| 17 | 6 |
6.7%
|
|
| 18 | 13 |
14.6%
|
|
| 19 | 2 |
2.2%
|
|
| 20 | 16 |
18%
|
|
| 21 | 3 |
3.4%
|
|
| 22 | 6 |
6.7%
|
|
| 23 | 2 |
2.2%
|
|
| 24 | 1 |
1.1%
|
|
| 25 | 12 |
13.5%
|
|
| 28 | 3 |
3.4%
|
|
| 30 | 2 |
2.2%
|
|
| 99 | Don't Know | 9 |
10.1%
|
| Sysmiss | 8309 |