Rank	Countries/Territories	Count	Percent
1	United States	643	43.5%
2	China	462	31.2%
3	Germany	114	7.7%
4	Japan	53	3.6%
5	France	34	2.3%
6	Singapore	31	2.1%
7	Netherlands	18	1.2%
8	Ukraine	14	0.9%
9	Bulgaria	13	0.9%
10	Canada	13	0.9%
11	South Africa	11	0.7%
12	Sweden	7	0.5%
13	Australia	7	0.5%
14	Cyprus	7	0.5%
15	United Kingdom	6	0.4%
16	Russia	5	0.3%
17	Korea, Republic of	5	0.3%
18	Bangladesh	4	0.3%
19	Turkey	4	0.3%
20	Malaysia	4	0.3%
21	Ireland	3	0.2%
22	Iran, Islamic Republic of	2	0.1%
23	Portugal	2	0.1%
24	Romania	2	0.1%
25	Latvia	2	0.1%
26	Greece	2	0.1%
27	Hong Kong	2	0.1%
28	Viet Nam	2	0.1%
29	India	1	0.1%
30	Lithuania	1	0.1%
31	Czech Republic	1	0.1%
32	Denmark	1	0.1%
33	Nigeria	1	0.1%
34	Switzerland	1	0.1%
35	Thailand	1	0.1%