| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
0.8%
|
| 0 | 439 |
73%
|
|
| 5 | 2 |
0.3%
|
|
| 7 | 1 |
0.2%
|
|
| 14 | 1 |
0.2%
|
|
| 15 | 2 |
0.3%
|
|
| 16 | 1 |
0.2%
|
|
| 20 | 6 |
1%
|
|
| 25 | 3 |
0.5%
|
|
| 28 | 1 |
0.2%
|
|
| 30 | 11 |
1.8%
|
|
| 35 | 3 |
0.5%
|
|
| 37 | 1 |
0.2%
|
|
| 40 | 11 |
1.8%
|
|
| 45 | 1 |
0.2%
|
|
| 50 | 33 |
5.5%
|
|
| 51 | 1 |
0.2%
|
|
| 55 | 5 |
0.8%
|
|
| 60 | 3 |
0.5%
|
|
| 64 | 1 |
0.2%
|
|
| 65 | 4 |
0.7%
|
|
| 70 | 3 |
0.5%
|
|
| 75 | 3 |
0.5%
|
|
| 90 | 3 |
0.5%
|
|
| 99 | 1 |
0.2%
|
|
| 100 | 56 |
9.3%
|