| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 16 |
2.7%
|
| 0 | 19 |
3.2%
|
|
| 1 | 1 |
0.2%
|
|
| 5 | 1 |
0.2%
|
|
| 10 | 6 |
1%
|
|
| 18 | 1 |
0.2%
|
|
| 20 | 11 |
1.8%
|
|
| 22 | 1 |
0.2%
|
|
| 25 | 3 |
0.5%
|
|
| 30 | 8 |
1.3%
|
|
| 35 | 2 |
0.3%
|
|
| 40 | 7 |
1.2%
|
|
| 45 | 3 |
0.5%
|
|
| 50 | 20 |
3.3%
|
|
| 60 | 17 |
2.8%
|
|
| 65 | 3 |
0.5%
|
|
| 66 | 1 |
0.2%
|
|
| 70 | 20 |
3.3%
|
|
| 71 | 1 |
0.2%
|
|
| 75 | 4 |
0.7%
|
|
| 80 | 18 |
3%
|
|
| 85 | 4 |
0.7%
|
|
| 90 | 11 |
1.8%
|
|
| 93 | 2 |
0.3%
|
|
| 95 | 1 |
0.2%
|
|
| 97 | 2 |
0.3%
|
|
| 98 | 1 |
0.2%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 416 |
69.2%
|