| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.3%
|
| 0 | 8 |
2.2%
|
|
| 1 | 1 |
0.3%
|
|
| 15 | 1 |
0.3%
|
|
| 20 | 9 |
2.5%
|
|
| 30 | 19 |
5.2%
|
|
| 35 | 1 |
0.3%
|
|
| 40 | 15 |
4.1%
|
|
| 50 | 37 |
10.2%
|
|
| 60 | 12 |
3.3%
|
|
| 65 | 1 |
0.3%
|
|
| 70 | 32 |
8.8%
|
|
| 75 | 2 |
0.6%
|
|
| 80 | 13 |
3.6%
|
|
| 90 | 6 |
1.7%
|
|
| 100 | 205 |
56.5%
|