| Value | Category | Cases | |
|---|---|---|---|
| 0 | 690 |
72.2%
|
|
| 10 | 6 |
0.6%
|
|
| 15 | 3 |
0.3%
|
|
| 20 | 12 |
1.3%
|
|
| 23 | 1 |
0.1%
|
|
| 25 | 7 |
0.7%
|
|
| 30 | 221 |
23.1%
|
|
| 35 | 2 |
0.2%
|
|
| 39 | 1 |
0.1%
|
|
| 40 | 5 |
0.5%
|
|
| 45 | 3 |
0.3%
|
|
| 50 | 3 |
0.3%
|
|
| 51 | 1 |
0.1%
|
|
| 55 | 1 |
0.1%
|
|
| 77 | Don't know | 0 |
0%
|
| Sysmiss | 810 |