Rank	Countries/Territories	Count	Percent
1	United States	456	43.3%
2	China	322	30.6%
3	Germany	109	10.3%
4	Japan	42	4%
5	France	35	3.3%
6	Canada	12	1.1%
7	Ukraine	11	1%
8	Netherlands	10	0.9%
9	Singapore	10	0.9%
10	Australia	10	0.9%
11	Cyprus	5	0.5%
12	India	5	0.5%
13	Iran, Islamic Republic of	4	0.4%
14	Taiwan	4	0.4%
15	United Kingdom	3	0.3%
16	Belgium	3	0.3%
17	Hong Kong	2	0.2%
18	Israel	2	0.2%
19	Malaysia	2	0.2%
20	Mongolia	2	0.2%
21	Korea, Republic of	1	0.1%
22	Italy	1	0.1%
23	Thailand	1	0.1%
24	South Africa	1	0.1%
25	Switzerland	1	0.1%