| Value | Category | Cases | |
|---|---|---|---|
| 18 | 6 |
15%
|
|
| 19 | 3 |
7.5%
|
|
| 20 | 2 |
5%
|
|
| 21 | 3 |
7.5%
|
|
| 22 | 2 |
5%
|
|
| 23 | 2 |
5%
|
|
| 24 | 1 |
2.5%
|
|
| 25 | 2 |
5%
|
|
| 26 | 4 |
10%
|
|
| 27 | 3 |
7.5%
|
|
| 28 | 2 |
5%
|
|
| 30 | 2 |
5%
|
|
| 36 | 1 |
2.5%
|
|
| 40 | 2 |
5%
|
|
| 41 | 2 |
5%
|
|
| 53 | 1 |
2.5%
|
|
| 54 | 1 |
2.5%
|
|
| 60 | 1 |
2.5%
|
|
| Sysmiss | Don't know | 0 | |
| Sysmiss | Refused to answer | 0 | |
| Sysmiss | Not applicable | 0 | |
| Sysmiss | 4417 |