| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 52 |
3%
|
| 0 | 10 |
0.6%
|
|
| 3 | 1 |
0.1%
|
|
| 5 | 4 |
0.2%
|
|
| 10 | 5 |
0.3%
|
|
| 15 | 4 |
0.2%
|
|
| 20 | 20 |
1.2%
|
|
| 25 | 2 |
0.1%
|
|
| 30 | 28 |
1.6%
|
|
| 35 | 2 |
0.1%
|
|
| 40 | 28 |
1.6%
|
|
| 45 | 3 |
0.2%
|
|
| 50 | 111 |
6.4%
|
|
| 55 | 4 |
0.2%
|
|
| 60 | 66 |
3.8%
|
|
| 65 | 8 |
0.5%
|
|
| 70 | 109 |
6.3%
|
|
| 75 | 15 |
0.9%
|
|
| 80 | 106 |
6.1%
|
|
| 85 | 12 |
0.7%
|
|
| 88 | 1 |
0.1%
|
|
| 90 | 76 |
4.4%
|
|
| 95 | 17 |
1%
|
|
| 97 | 2 |
0.1%
|
|
| 98 | 6 |
0.3%
|
|
| 99 | 4 |
0.2%
|
|
| 100 | 1029 |
59.7%
|