| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
0.5%
|
| 0 | 1 |
0.1%
|
|
| 10 | 1 |
0.1%
|
|
| 20 | 8 |
0.6%
|
|
| 25 | 1 |
0.1%
|
|
| 30 | 9 |
0.7%
|
|
| 31 | 1 |
0.1%
|
|
| 40 | 23 |
1.8%
|
|
| 50 | 55 |
4.2%
|
|
| 55 | 1 |
0.1%
|
|
| 60 | 38 |
2.9%
|
|
| 63 | 1 |
0.1%
|
|
| 65 | 1 |
0.1%
|
|
| 70 | 53 |
4.1%
|
|
| 75 | 11 |
0.8%
|
|
| 80 | 61 |
4.7%
|
|
| 85 | 1 |
0.1%
|
|
| 90 | 9 |
0.7%
|
|
| 98 | 1 |
0.1%
|
|
| 100 | 1017 |
78.2%
|