| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 126 |
9.5%
|
| 0 | 444 |
33.6%
|
|
| 1 | 4 |
0.3%
|
|
| 2 | 3 |
0.2%
|
|
| 3 | 2 |
0.2%
|
|
| 4 | 2 |
0.2%
|
|
| 5 | 38 |
2.9%
|
|
| 7 | 1 |
0.1%
|
|
| 8 | 1 |
0.1%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 133 |
10.1%
|
|
| 11 | 2 |
0.2%
|
|
| 12 | 4 |
0.3%
|
|
| 15 | 91 |
6.9%
|
|
| 17 | 3 |
0.2%
|
|
| 18 | 2 |
0.2%
|
|
| 20 | 132 |
10%
|
|
| 25 | 38 |
2.9%
|
|
| 30 | 76 |
5.7%
|
|
| 33 | 3 |
0.2%
|
|
| 35 | 16 |
1.2%
|
|
| 37 | 1 |
0.1%
|
|
| 40 | 52 |
3.9%
|
|
| 45 | 7 |
0.5%
|
|
| 50 | 59 |
4.5%
|
|
| 55 | 4 |
0.3%
|
|
| 58 | 1 |
0.1%
|
|
| 60 | 25 |
1.9%
|
|
| 65 | 3 |
0.2%
|
|
| 70 | 10 |
0.8%
|
|
| 73 | 1 |
0.1%
|
|
| 75 | 2 |
0.2%
|
|
| 80 | 17 |
1.3%
|
|
| 90 | 5 |
0.4%
|
|
| 92 | 1 |
0.1%
|
|
| 100 | 13 |
1%
|