Rank	Countries/Territories	Count	Percent
1	United States	443	45.3%
2	China	233	23.8%
3	Germany	107	10.9%
4	Japan	28	2.9%
5	Canada	27	2.8%
6	Korea, Republic of	21	2.1%
7	France	19	1.9%
8	Russia	15	1.5%
9	Turkey	9	0.9%
10	Singapore	9	0.9%
11	Netherlands	7	0.7%
12	India	7	0.7%
13	Cyprus	6	0.6%
14	Ukraine	6	0.6%
15	Bulgaria	5	0.5%
16	United Kingdom	3	0.3%
17	Viet Nam	3	0.3%
18	Thailand	3	0.3%
19	Romania	3	0.3%
20	South Africa	3	0.3%
21	Spain	3	0.3%
22	Switzerland	2	0.2%
23	Mongolia	2	0.2%
24	Saudi Arabia	2	0.2%
25	Argentina	2	0.2%
26	Australia	2	0.2%
27	Iraq	2	0.2%
28	Ireland	1	0.1%
29	Latvia	1	0.1%
30	Bangladesh	1	0.1%
31	Benin	1	0.1%
32	Colombia	1	0.1%
33	Portugal	1	0.1%