| Value | Category | Cases | |
|---|---|---|---|
| 0 | 443 |
48.5%
|
|
| 1 | 2 |
0.2%
|
|
| 2 | 1 |
0.1%
|
|
| 3 | 2 |
0.2%
|
|
| 10 | 40 |
4.4%
|
|
| 15 | 42 |
4.6%
|
|
| 16 | 1 |
0.1%
|
|
| 20 | 40 |
4.4%
|
|
| 21 | 1 |
0.1%
|
|
| 25 | 3 |
0.3%
|
|
| 30 | 263 |
28.8%
|
|
| 35 | 2 |
0.2%
|
|
| 40 | 22 |
2.4%
|
|
| 45 | 31 |
3.4%
|
|
| 50 | 12 |
1.3%
|
|
| 55 | 1 |
0.1%
|
|
| 59 | 2 |
0.2%
|
|
| 77 | Don't know | 6 |
0.7%
|
| Sysmiss | 6312 |