Rank	Countries/Territories	Count	Percent
1	United States	540	40.9%
2	China	324	24.5%
3	Germany	133	10.1%
4	France	57	4.3%
5	Japan	55	4.2%
6	Netherlands	27	2%
7	India	24	1.8%
8	Korea, Republic of	23	1.7%
9	Canada	18	1.4%
10	Australia	11	0.8%
11	Cyprus	9	0.7%
12	Nigeria	9	0.7%
13	Singapore	9	0.7%
14	Iran, Islamic Republic of	8	0.6%
15	Norway	7	0.5%
16	Hong Kong	6	0.5%
17	Togo	5	0.4%
18	Ukraine	5	0.4%
19	Greece	5	0.4%
20	Uruguay	4	0.3%
21	Argentina	3	0.2%
22	United Arab Emirates	3	0.2%
23	Switzerland	3	0.2%
24	Malaysia	3	0.2%
25	Mongolia	3	0.2%
26	Taiwan	2	0.2%
27	United Kingdom	2	0.2%
28	Turkey	2	0.2%
29	Israel	2	0.2%
30	Egypt	2	0.2%
31	Azerbaijan	2	0.2%
32	Chile	2	0.2%
33	Costa Rica	2	0.2%
34	Croatia	2	0.2%
35	Bulgaria	1	0.1%
36	Cambodia	1	0.1%
37	Indonesia	1	0.1%
38	Latvia	1	0.1%
39	Portugal	1	0.1%
40	Russia	1	0.1%
41	Morocco	1	0.1%
42	Viet Nam	1	0.1%