Rank	Countries/Territories	Count	Percent
1	United States	320	38.9%
2	China	265	32.2%
3	Germany	70	8.5%
4	Japan	52	6.3%
5	Canada	15	1.8%
6	Netherlands	11	1.3%
7	Ukraine	9	1.1%
8	Ireland	8	1%
9	India	7	0.9%
10	Singapore	7	0.9%
11	Taiwan	6	0.7%
12	Iran, Islamic Republic of	6	0.7%
13	France	6	0.7%
14	Mexico	5	0.6%
15	Russia	4	0.5%
16	Cyprus	4	0.5%
17	Argentina	4	0.5%
18	Malaysia	3	0.4%
19	United Kingdom	3	0.4%
20	Viet Nam	2	0.2%
21	South Africa	2	0.2%
22	Korea, Republic of	2	0.2%
23	Australia	2	0.2%
24	Egypt	2	0.2%
25	Hong Kong	1	0.1%
26	Norway	1	0.1%
27	Sweden	1	0.1%
28	Switzerland	1	0.1%
29	Thailand	1	0.1%
30	Turkey	1	0.1%
31	Uganda	1	0.1%