| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1%
|
| 0 | 485 |
78%
|
|
| 2 | 2 |
0.3%
|
|
| 5 | 2 |
0.3%
|
|
| 8 | 1 |
0.2%
|
|
| 10 | 6 |
1%
|
|
| 11 | 1 |
0.2%
|
|
| 15 | 3 |
0.5%
|
|
| 20 | 26 |
4.2%
|
|
| 25 | 5 |
0.8%
|
|
| 30 | 29 |
4.7%
|
|
| 35 | 3 |
0.5%
|
|
| 40 | 5 |
0.8%
|
|
| 50 | 33 |
5.3%
|
|
| 60 | 2 |
0.3%
|
|
| 70 | 2 |
0.3%
|
|
| 75 | 1 |
0.2%
|
|
| 80 | 2 |
0.3%
|
|
| 90 | 1 |
0.2%
|
|
| 100 | 7 |
1.1%
|