| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
2%
|
| 0 | 493 |
76%
|
|
| 2 | 1 |
0.2%
|
|
| 10 | 4 |
0.6%
|
|
| 15 | 2 |
0.3%
|
|
| 20 | 6 |
0.9%
|
|
| 25 | 1 |
0.2%
|
|
| 30 | 7 |
1.1%
|
|
| 40 | 9 |
1.4%
|
|
| 45 | 1 |
0.2%
|
|
| 50 | 12 |
1.8%
|
|
| 60 | 19 |
2.9%
|
|
| 65 | 3 |
0.5%
|
|
| 70 | 13 |
2%
|
|
| 73 | 2 |
0.3%
|
|
| 75 | 2 |
0.3%
|
|
| 80 | 12 |
1.8%
|
|
| 90 | 4 |
0.6%
|
|
| 100 | 45 |
6.9%
|