Rank	Countries/Territories	Count	Percent
1	United States	444	41%
2	China	337	31.1%
3	Germany	102	9.4%
4	France	45	4.2%
5	Ukraine	23	2.1%
6	Canada	19	1.8%
7	Taiwan	17	1.6%
8	Japan	16	1.5%
9	Ireland	13	1.2%
10	India	9	0.8%
11	Korea, Republic of	9	0.8%
12	Cyprus	7	0.6%
13	Netherlands	6	0.6%
14	Singapore	5	0.5%
15	Spain	5	0.5%
16	Australia	5	0.5%
17	Hong Kong	3	0.3%
18	Kazakhstan	3	0.3%
19	Mongolia	3	0.3%
20	Viet Nam	2	0.2%
21	Latvia	2	0.2%
22	Iran, Islamic Republic of	2	0.2%
23	Bangladesh	2	0.2%
24	Argentina	1	0.1%
25	Lithuania	1	0.1%
26	Switzerland	1	0.1%
27	Russia	1	0.1%