Rank	Countries/Territories	Count	Percent
1	United States	273	35%
2	China	253	32.5%
3	Germany	73	9.4%
4	France	28	3.6%
5	Argentina	20	2.6%
6	Japan	11	1.4%
7	Australia	10	1.3%
8	Iran, Islamic Republic of	9	1.2%
9	Canada	8	1%
10	Turkey	8	1%
11	Netherlands	8	1%
12	Singapore	8	1%
13	Cyprus	7	0.9%
14	India	7	0.9%
15	Thailand	6	0.8%
16	Russia	4	0.5%
17	Saudi Arabia	4	0.5%
18	Greece	4	0.5%
19	Italy	3	0.4%
20	Ireland	3	0.4%
21	Malaysia	3	0.4%
22	Philippines	3	0.4%
23	Switzerland	3	0.4%
24	United Kingdom	2	0.3%
25	Spain	2	0.3%
26	Peru	2	0.3%
27	Mexico	2	0.3%
28	Mongolia	2	0.3%
29	Korea, Republic of	2	0.3%
30	Kuwait	2	0.3%
31	Bangladesh	2	0.3%
32	Viet Nam	2	0.3%
33	Egypt	1	0.1%
34	Mauritius	1	0.1%
35	Israel	1	0.1%
36	Uruguay	1	0.1%
37	Ukraine	1	0.1%