| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 23 |
1.9%
|
| 0 | 1177 |
95%
|
|
| 1 | 1 |
0.1%
|
|
| 5 | 2 |
0.2%
|
|
| 10 | 9 |
0.7%
|
|
| 15 | 2 |
0.2%
|
|
| 20 | 8 |
0.6%
|
|
| 25 | 2 |
0.2%
|
|
| 30 | 7 |
0.6%
|
|
| 50 | 4 |
0.3%
|
|
| 70 | 1 |
0.1%
|
|
| 80 | 2 |
0.2%
|
|
| 100 | 1 |
0.1%
|