Rank	Countries/Territories	Count	Percent
1	United States	411	38.4%
2	China	283	26.4%
3	Germany	98	9.2%
4	Japan	52	4.9%
5	India	33	3.1%
6	United Kingdom	33	3.1%
7	Canada	20	1.9%
8	Italy	19	1.8%
9	Netherlands	16	1.5%
10	Kazakhstan	11	1%
11	Russia	9	0.8%
12	Cyprus	8	0.7%
13	Colombia	7	0.7%
14	Philippines	6	0.6%
15	France	5	0.5%
16	Australia	5	0.5%
17	Singapore	5	0.5%
18	Iran, Islamic Republic of	4	0.4%
19	Egypt	4	0.4%
20	Ireland	3	0.3%
21	Ukraine	3	0.3%
22	Viet Nam	3	0.3%
23	Yemen	2	0.2%
24	South Africa	2	0.2%
25	Serbia	2	0.2%
26	Indonesia	2	0.2%
27	Cambodia	2	0.2%
28	Korea, Republic of	2	0.2%
29	Mauritius	2	0.2%
30	Mexico	1	0.1%
31	Puerto Rico	1	0.1%
32	Romania	1	0.1%
33	Norway	1	0.1%
34	Pakistan	1	0.1%
35	Peru	1	0.1%
36	Lithuania	1	0.1%
37	Luxembourg	1	0.1%
38	Malaysia	1	0.1%
39	Jordan	1	0.1%
40	Austria	1	0.1%
41	Azerbaijan	1	0.1%
42	Denmark	1	0.1%
43	Finland	1	0.1%
44	Greece	1	0.1%
45	Slovakia	1	0.1%
46	Taiwan	1	0.1%
47	United Arab Emirates	1	0.1%