Rank	Countries/Territories	Count	Percent
1	United States	413	43.6%
2	China	328	34.6%
3	Germany	69	7.3%
4	France	24	2.5%
5	Canada	15	1.6%
6	Korea, Republic of	13	1.4%
7	Ukraine	12	1.3%
8	Taiwan	11	1.2%
9	Japan	9	0.9%
10	Hong Kong	5	0.5%
11	Singapore	5	0.5%
12	Morocco	5	0.5%
13	Netherlands	4	0.4%
14	India	4	0.4%
15	Argentina	4	0.4%
16	Cyprus	3	0.3%
17	Ireland	3	0.3%
18	Mongolia	3	0.3%
19	Latvia	2	0.2%
20	Malaysia	2	0.2%
21	Australia	2	0.2%
22	Brazil	2	0.2%
23	Pakistan	2	0.2%
24	Philippines	2	0.2%
25	Spain	2	0.2%
26	Thailand	2	0.2%
27	Bulgaria	1	0.1%
28	Bangladesh	1	0.1%