| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 15 |
0.9%
|
| 0 | 1698 |
98.4%
|
|
| 5 | 1 |
0.1%
|
|
| 10 | 1 |
0.1%
|
|
| 30 | 1 |
0.1%
|
|
| 40 | 2 |
0.1%
|
|
| 49 | 1 |
0.1%
|
|
| 50 | 2 |
0.1%
|
|
| 60 | 1 |
0.1%
|
|
| 70 | 2 |
0.1%
|
|
| 80 | 1 |
0.1%
|