Rank	Countries/Territories	Count	Percent
1	United States	489	39.3%
2	China	413	33.2%
3	Germany	165	13.3%
4	Canada	26	2.1%
5	United Kingdom	22	1.8%
6	Korea, Republic of	15	1.2%
7	Cyprus	11	0.9%
8	France	11	0.9%
9	Netherlands	10	0.8%
10	Japan	9	0.7%
11	Brazil	8	0.6%
12	Ukraine	7	0.6%
13	Singapore	6	0.5%
14	India	6	0.5%
15	Hong Kong	5	0.4%
16	Ireland	5	0.4%
17	Russia	5	0.4%
18	Latvia	4	0.3%
19	Indonesia	3	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Australia	2	0.2%
22	Belgium	2	0.2%
23	Czech Republic	2	0.2%
24	Philippines	2	0.2%
25	Nigeria	2	0.2%
26	Togo	2	0.2%
27	Viet Nam	2	0.2%
28	Turkey	1	0.1%
29	Norway	1	0.1%
30	Slovakia	1	0.1%
31	South Africa	1	0.1%
32	Spain	1	0.1%
33	Sweden	1	0.1%
34	Georgia	1	0.1%
35	Mongolia	1	0.1%