| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 1 |
0.7%
|
| 0 | 112 |
75.7%
|
|
| 5 | 2 |
1.4%
|
|
| 10 | 9 |
6.1%
|
|
| 15 | 3 |
2%
|
|
| 20 | 7 |
4.7%
|
|
| 25 | 1 |
0.7%
|
|
| 30 | 6 |
4.1%
|
|
| 35 | 1 |
0.7%
|
|
| 40 | 1 |
0.7%
|
|
| 50 | 2 |
1.4%
|
|
| 55 | 1 |
0.7%
|
|
| 60 | 2 |
1.4%
|