| Value | Category | Cases | |
|---|---|---|---|
| 18 | 3 |
7.5%
|
|
| 19 | 8 |
20%
|
|
| 20 | 10 |
25%
|
|
| 21 | 2 |
5%
|
|
| 22 | 7 |
17.5%
|
|
| 23 | 7 |
17.5%
|
|
| 24 | 2 |
5%
|
|
| 25 | 1 |
2.5%
|
|
| 98 | 98. Refused | 0 |
0%
|
| 99 | 99. Don't know | 0 |
0%
|
| Sysmiss | 194 |