| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
1%
|
| 0 | 318 |
53.7%
|
|
| 1 | 21 |
3.5%
|
|
| 2 | 7 |
1.2%
|
|
| 3 | 6 |
1%
|
|
| 4 | 2 |
0.3%
|
|
| 5 | 17 |
2.9%
|
|
| 6 | 1 |
0.2%
|
|
| 8 | 1 |
0.2%
|
|
| 9 | 1 |
0.2%
|
|
| 10 | 29 |
4.9%
|
|
| 15 | 6 |
1%
|
|
| 20 | 23 |
3.9%
|
|
| 25 | 9 |
1.5%
|
|
| 26 | 1 |
0.2%
|
|
| 28 | 1 |
0.2%
|
|
| 30 | 18 |
3%
|
|
| 35 | 3 |
0.5%
|
|
| 40 | 8 |
1.4%
|
|
| 50 | 27 |
4.6%
|
|
| 60 | 11 |
1.9%
|
|
| 65 | 1 |
0.2%
|
|
| 70 | 13 |
2.2%
|
|
| 75 | 2 |
0.3%
|
|
| 80 | 26 |
4.4%
|
|
| 85 | 2 |
0.3%
|
|
| 90 | 32 |
5.4%
|