Rank	Countries/Territories	Count	Percent
1	United States	495	33.7%
2	China	360	24.5%
3	Germany	120	8.2%
4	France	61	4.2%
5	India	58	4%
6	Japan	41	2.8%
7	Brazil	41	2.8%
8	United Kingdom	32	2.2%
9	Canada	27	1.8%
10	Denmark	23	1.6%
11	Netherlands	23	1.6%
12	Iran, Islamic Republic of	11	0.7%
13	Cyprus	10	0.7%
14	Sweden	10	0.7%
15	Taiwan	10	0.7%
16	Turkey	10	0.7%
17	Singapore	9	0.6%
18	Spain	9	0.6%
19	Nigeria	7	0.5%
20	Bulgaria	7	0.5%
21	Ireland	7	0.5%
22	Hong Kong	7	0.5%
23	Indonesia	6	0.4%
24	Iraq	6	0.4%
25	Australia	6	0.4%
26	Italy	5	0.3%
27	Romania	5	0.3%
28	Mexico	4	0.3%
29	Korea, Republic of	4	0.3%
30	New Zealand	3	0.2%
31	Egypt	3	0.2%
32	Greece	3	0.2%
33	Cameroon	3	0.2%
34	Argentina	3	0.2%
35	Colombia	3	0.2%
36	Senegal	3	0.2%
37	Pakistan	3	0.2%
38	Qatar	3	0.2%
39	Thailand	3	0.2%
40	Viet Nam	3	0.2%
41	Venezuela, Bolivarian Republic of	2	0.1%
42	Sri Lanka	2	0.1%
43	Chile	2	0.1%
44	Algeria	2	0.1%
45	Ecuador	2	0.1%
46	Malaysia	2	0.1%
47	Israel	2	0.1%
48	Kenya	1	0.1%
49	Czech Republic	1	0.1%
50	South Africa	1	0.1%
51	Peru	1	0.1%
52	Ukraine	1	0.1%
53	Tanzania, United Republic of	1	0.1%
54	Switzerland	1	0.1%