Rank	Countries/Territories	Count	Percent
1	United States	268	34.6%
2	China	213	27.5%
3	Germany	58	7.5%
4		52	6.7%
5	India	50	6.5%
6	Japan	14	1.8%
7	Russia	14	1.8%
8	Korea, Republic of	9	1.2%
9	Qatar	8	1%
10	United Kingdom	7	0.9%
11	Canada	7	0.9%
12	Hong Kong	6	0.8%
13	Australia	6	0.8%
14	Israel	6	0.8%
15	Senegal	6	0.8%
16	Singapore	4	0.5%
17	South Africa	4	0.5%
18	Italy	4	0.5%
19	Czech Republic	3	0.4%
20	Greece	3	0.4%
21	Zimbabwe	3	0.4%
22	Viet Nam	2	0.3%
23	Grenada	2	0.3%
24	Ireland	2	0.3%
25	Egypt	2	0.3%
26	France	2	0.3%
27	Colombia	2	0.3%
28	Brazil	2	0.3%
29	Cameroon	2	0.3%
30	Pakistan	2	0.3%
31	Malaysia	2	0.3%
32	Netherlands	1	0.1%
33	Poland	1	0.1%
34	Spain	1	0.1%
35	Thailand	1	0.1%
36	Ukraine	1	0.1%
37	Slovakia	1	0.1%
38	Austria	1	0.1%
39	Indonesia	1	0.1%
40	Iraq	1	0.1%
41	Hungary	1	0.1%