Rank	Countries/Territories	Count	Percent
1	United States	369	38.2%
2	China	327	33.9%
3	Germany	95	9.8%
4	Japan	30	3.1%
5	Belgium	24	2.5%
6	Korea, Republic of	17	1.8%
7	Singapore	14	1.4%
8	Canada	12	1.2%
9	France	12	1.2%
10	India	9	0.9%
11	Hong Kong	6	0.6%
12	Argentina	5	0.5%
13	Cyprus	5	0.5%
14	Netherlands	5	0.5%
15	Virgin Islands, British	3	0.3%
16	Taiwan	3	0.3%
17	Ukraine	3	0.3%
18	Czech Republic	3	0.3%
19	Egypt	3	0.3%
20	Australia	3	0.3%
21	Austria	3	0.3%
22	Bulgaria	3	0.3%
23	Iran, Islamic Republic of	3	0.3%
24	Italy	3	0.3%
25	Malaysia	2	0.2%
26	United Kingdom	2	0.2%
27	Switzerland	2	0.2%