| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 81 |
8.3%
|
| 0 | 33 |
3.4%
|
|
| 3 | 1 |
0.1%
|
|
| 10 | 14 |
1.4%
|
|
| 15 | 3 |
0.3%
|
|
| 20 | 41 |
4.2%
|
|
| 25 | 11 |
1.1%
|
|
| 30 | 70 |
7.2%
|
|
| 35 | 13 |
1.3%
|
|
| 40 | 35 |
3.6%
|
|
| 45 | 1 |
0.1%
|
|
| 50 | 122 |
12.5%
|
|
| 55 | 1 |
0.1%
|
|
| 60 | 46 |
4.7%
|
|
| 65 | 5 |
0.5%
|
|
| 70 | 53 |
5.4%
|
|
| 75 | 4 |
0.4%
|
|
| 80 | 78 |
8%
|
|
| 85 | 6 |
0.6%
|
|
| 90 | 49 |
5%
|
|
| 93 | 1 |
0.1%
|
|
| 95 | 21 |
2.1%
|
|
| 96 | 1 |
0.1%
|
|
| 97 | 1 |
0.1%
|
|
| 98 | 9 |
0.9%
|
|
| 99 | 7 |
0.7%
|
|
| 100 | 272 |
27.8%
|