| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 37 |
10.3%
|
| 0 | 283 |
78.6%
|
|
| 2 | 2 |
0.6%
|
|
| 3 | 1 |
0.3%
|
|
| 4 | 2 |
0.6%
|
|
| 5 | 1 |
0.3%
|
|
| 6 | 1 |
0.3%
|
|
| 12 | 1 |
0.3%
|
|
| 15 | 3 |
0.8%
|
|
| 20 | 1 |
0.3%
|
|
| 24 | 1 |
0.3%
|
|
| 30 | 2 |
0.6%
|
|
| 40 | 2 |
0.6%
|
|
| 50 | 1 |
0.3%
|
|
| 100 | 1 |
0.3%
|
|
| 168 | 1 |
0.3%
|
|
| 180 | 1 |
0.3%
|
|
| 200 | 1 |
0.3%
|
|
| 300 | 1 |
0.3%
|
|
| 360 | 1 |
0.3%
|
|
| 391 | 1 |
0.3%
|
|
| 500 | 1 |
0.3%
|
|
| 600 | 1 |
0.3%
|
|
| 655 | 1 |
0.3%
|
|
| 900 | 1 |
0.3%
|
|
| 1100 | 1 |
0.3%
|
|
| 1500 | 1 |
0.3%
|
|
| 2077 | 1 |
0.3%
|
|
| 6000 | 1 |
0.3%
|
|
| 7176 | 1 |
0.3%
|
|
| 200000 | 1 |
0.3%
|
|
| 500000 | 1 |
0.3%
|
|
| 550000 | 1 |
0.3%
|
|
| 600000 | 1 |
0.3%
|
|
| 612600 | 1 |
0.3%
|
|
| 630000 | 1 |
0.3%
|