Rank	Countries/Territories	Count	Percent
1	United States	294	42.5%
2	China	209	30.2%
3	Germany	55	8%
4	Japan	20	2.9%
5	Australia	16	2.3%
6	Netherlands	11	1.6%
7	Switzerland	11	1.6%
8	France	9	1.3%
9	Korea, Republic of	9	1.3%
10	Hong Kong	9	1.3%
11	Cyprus	6	0.9%
12	United Kingdom	5	0.7%
13	Singapore	4	0.6%
14	Spain	4	0.6%
15	Brazil	4	0.6%
16	Belgium	3	0.4%
17	Canada	3	0.4%
18	Romania	3	0.4%
19	Turkey	2	0.3%
20	Burkina Faso	2	0.3%
21	Azerbaijan	2	0.3%
22	India	2	0.3%
23	Indonesia	2	0.3%
24	Ireland	2	0.3%
25	Czech Republic	1	0.1%
26	Colombia	1	0.1%
27	Portugal	1	0.1%
28	Virgin Islands, U.S.	1	0.1%