| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 21 |
2.1%
|
| 0 | 10 |
1%
|
|
| 5 | 1 |
0.1%
|
|
| 10 | 10 |
1%
|
|
| 15 | 5 |
0.5%
|
|
| 20 | 13 |
1.3%
|
|
| 25 | 4 |
0.4%
|
|
| 30 | 18 |
1.8%
|
|
| 35 | 3 |
0.3%
|
|
| 40 | 10 |
1%
|
|
| 48 | 1 |
0.1%
|
|
| 50 | 38 |
3.8%
|
|
| 55 | 2 |
0.2%
|
|
| 60 | 23 |
2.3%
|
|
| 65 | 2 |
0.2%
|
|
| 68 | 1 |
0.1%
|
|
| 70 | 17 |
1.7%
|
|
| 75 | 2 |
0.2%
|
|
| 80 | 20 |
2%
|
|
| 85 | 2 |
0.2%
|
|
| 88 | 1 |
0.1%
|
|
| 90 | 13 |
1.3%
|
|
| 93 | 1 |
0.1%
|
|
| 95 | 7 |
0.7%
|
|
| 97 | 2 |
0.2%
|
|
| 100 | 781 |
77.5%
|