| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 570 |
19.3%
|
| 0 | 73 |
2.5%
|
|
| 2 | 1 |
0%
|
|
| 5 | 1 |
0%
|
|
| 10 | 3 |
0.1%
|
|
| 20 | 2 |
0.1%
|
|
| 30 | 6 |
0.2%
|
|
| 40 | 1 |
0%
|
|
| 48 | 2 |
0.1%
|
|
| 49 | 1 |
0%
|
|
| 50 | 30 |
1%
|
|
| 60 | 8 |
0.3%
|
|
| 70 | 3 |
0.1%
|
|
| 75 | 2 |
0.1%
|
|
| 80 | 11 |
0.4%
|
|
| 85 | 1 |
0%
|
|
| 87 | 1 |
0%
|
|
| 90 | 5 |
0.2%
|
|
| 95 | 1 |
0%
|
|
| 97 | 1 |
0%
|
|
| 100 | 2232 |
75.5%
|