| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 154 |
14.1%
|
| 0 | 79 |
7.2%
|
|
| 10 | 4 |
0.4%
|
|
| 15 | 1 |
0.1%
|
|
| 18 | 1 |
0.1%
|
|
| 20 | 2 |
0.2%
|
|
| 30 | 6 |
0.5%
|
|
| 40 | 11 |
1%
|
|
| 45 | 2 |
0.2%
|
|
| 49 | 1 |
0.1%
|
|
| 50 | 48 |
4.4%
|
|
| 51 | 1 |
0.1%
|
|
| 57 | 1 |
0.1%
|
|
| 60 | 36 |
3.3%
|
|
| 65 | 6 |
0.5%
|
|
| 70 | 24 |
2.2%
|
|
| 75 | 2 |
0.2%
|
|
| 80 | 27 |
2.5%
|
|
| 90 | 9 |
0.8%
|
|
| 95 | 1 |
0.1%
|
|
| 100 | 680 |
62%
|