Rank	Countries/Territories	Count	Percent
1	United States	493	41.9%
2	China	300	25.5%
3	Germany	156	13.2%
4	Canada	40	3.4%
5	France	29	2.5%
6	Netherlands	17	1.4%
7	Russia	16	1.4%
8	Singapore	13	1.1%
9	Japan	12	1%
10	Australia	11	0.9%
11	Hong Kong	8	0.7%
12	Cyprus	7	0.6%
13	Italy	7	0.6%
14	Turkey	6	0.5%
15	Mongolia	5	0.4%
16	Czech Republic	5	0.4%
17	Iran, Islamic Republic of	5	0.4%
18	United Arab Emirates	4	0.3%
19	Romania	3	0.3%
20	Ukraine	3	0.3%
21	Israel	3	0.3%
22	India	3	0.3%
23	Indonesia	3	0.3%
24	Malaysia	3	0.3%
25	Korea, Republic of	3	0.3%
26	Latvia	2	0.2%
27	Luxembourg	2	0.2%
28	Pakistan	2	0.2%
29	Spain	2	0.2%
30	Ghana	2	0.2%
31	Gambia	2	0.2%
32	Colombia	2	0.2%
33	United Kingdom	2	0.2%
34	Bangladesh	1	0.1%
35	Brazil	1	0.1%
36	Iraq	1	0.1%
37	Sweden	1	0.1%
38	Switzerland	1	0.1%
39	Uganda	1	0.1%
40	Nigeria	1	0.1%