| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
5%
|
| 0 | 263 |
73.1%
|
|
| 1 | 1 |
0.3%
|
|
| 2 | 1 |
0.3%
|
|
| 3 | 2 |
0.6%
|
|
| 5 | 4 |
1.1%
|
|
| 10 | 6 |
1.7%
|
|
| 12 | 1 |
0.3%
|
|
| 15 | 1 |
0.3%
|
|
| 20 | 6 |
1.7%
|
|
| 30 | 9 |
2.5%
|
|
| 35 | 1 |
0.3%
|
|
| 36 | 1 |
0.3%
|
|
| 40 | 4 |
1.1%
|
|
| 50 | 11 |
3.1%
|
|
| 60 | 7 |
1.9%
|
|
| 70 | 4 |
1.1%
|
|
| 80 | 8 |
2.2%
|
|
| 90 | 4 |
1.1%
|
|
| 100 | 8 |
2.2%
|