Rank	Countries/Territories	Count	Percent
1	United States	203	41.6%
2	China	138	28.3%
3	Germany	77	15.8%
4	Iran, Islamic Republic of	12	2.5%
5	Japan	9	1.8%
6		6	1.2%
7	Australia	6	1.2%
8	Cyprus	5	1%
9	Singapore	5	1%
10	Netherlands	4	0.8%
11	Russia	3	0.6%
12	Argentina	3	0.6%
13	Hong Kong	3	0.6%
14	Canada	2	0.4%
15	Korea, Republic of	2	0.4%
16	Ireland	2	0.4%
17	South Africa	2	0.4%
18	United Kingdom	2	0.4%
19	Switzerland	1	0.2%
20	Mongolia	1	0.2%
21	Norway	1	0.2%
22	Colombia	1	0.2%