| Value | Category | Cases | |
|---|---|---|---|
| AFGHANISTAN | 1 |
0.2%
|
|
| ARGENTINA | 2 |
0.3%
|
|
| AUSTRALIA | 1 |
0.2%
|
|
| CANADA | 15 |
2.5%
|
|
| CUBA | 2 |
0.3%
|
|
| DENMARK | 1 |
0.2%
|
|
| ENGLAND | 5 |
0.8%
|
|
| FRANCE | 5 |
0.8%
|
|
| GERMANY | 1 |
0.2%
|
|
| ITALY | 2 |
0.3%
|
|
| JAPAN | 2 |
0.3%
|
|
| SPAIN | 9 |
1.5%
|
|
| SWITZERLAND | 4 |
0.7%
|
|
| TANZANIA | 1 |
0.2%
|
|
| UNITED STATES | 552 |
91.2%
|
|
| VENEZUELA | 2 |
0.3%
|