| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.2%
|
| 0 | 403 |
83.6%
|
|
| 10 | 1 |
0.2%
|
|
| 15 | 1 |
0.2%
|
|
| 20 | 4 |
0.8%
|
|
| 25 | 2 |
0.4%
|
|
| 30 | 12 |
2.5%
|
|
| 40 | 7 |
1.5%
|
|
| 50 | 16 |
3.3%
|
|
| 55 | 1 |
0.2%
|
|
| 60 | 4 |
0.8%
|
|
| 70 | 7 |
1.5%
|
|
| 80 | 2 |
0.4%
|
|
| 90 | 2 |
0.4%
|
|
| 100 | 19 |
3.9%
|