Rank	Countries/Territories	Count	Percent
1	United States	325	40.4%
2	China	279	34.7%
3	Germany	49	6.1%
4	Japan	21	2.6%
5	India	14	1.7%
6	Netherlands	13	1.6%
7	Singapore	9	1.1%
8	Russia	7	0.9%
9	Cyprus	7	0.9%
10	Chile	7	0.9%
11	Australia	6	0.7%
12	Korea, Republic of	6	0.7%
13	United Kingdom	6	0.7%
14	Ukraine	5	0.6%
15	Canada	5	0.6%
16	Egypt	4	0.5%
17	France	4	0.5%
18	Iran, Islamic Republic of	3	0.4%
19	Mongolia	3	0.4%
20	Switzerland	3	0.4%
21	Virgin Islands, British	3	0.4%
22	Saudi Arabia	3	0.4%
23	Pakistan	3	0.4%
24	Poland	3	0.4%
25	Qatar	2	0.2%
26	Spain	2	0.2%
27	Taiwan	2	0.2%
28	Thailand	2	0.2%
29	Ireland	2	0.2%
30	Italy	1	0.1%
31	Latvia	1	0.1%
32	Malaysia	1	0.1%
33	Bangladesh	1	0.1%
34	Nigeria	1	0.1%
35	Norway	1	0.1%