Rank	Countries/Territories	Count	Percent
1	United States	464	35.5%
2	China	371	28.4%
3	Germany	119	9.1%
4	France	50	3.8%
5	Canada	46	3.5%
6	Japan	39	3%
7	India	36	2.8%
8	Australia	26	2%
9	Iran, Islamic Republic of	10	0.8%
10	Indonesia	9	0.7%
11	Singapore	9	0.7%
12	Italy	8	0.6%
13	Ukraine	8	0.6%
14	Korea, Republic of	8	0.6%
15	Netherlands	8	0.6%
16	United Kingdom	7	0.5%
17	Serbia	6	0.5%
18	Cyprus	6	0.5%
19	Georgia	4	0.3%
20	Egypt	4	0.3%
21	Hong Kong	4	0.3%
22	Philippines	4	0.3%
23	Brazil	4	0.3%
24	Ireland	4	0.3%
25	Pakistan	3	0.2%
26	Thailand	3	0.2%
27	Turkey	3	0.2%
28	Spain	3	0.2%
29	Taiwan	3	0.2%
30	Tanzania, United Republic of	2	0.2%
31	Sweden	2	0.2%
32	Saudi Arabia	2	0.2%
33	Peru	2	0.2%
34	Morocco	2	0.2%
35	Poland	2	0.2%
36	Kazakhstan	2	0.2%
37	Iraq	2	0.2%
38	Hungary	2	0.2%
39	Greece	2	0.2%
40	Ethiopia	2	0.2%
41	Czech Republic	2	0.2%
42	Austria	2	0.2%
43	Belgium	2	0.2%
44	Bosnia and Herzegovina	1	0.1%
45	Azerbaijan	1	0.1%
46	Chile	1	0.1%
47	Finland	1	0.1%
48	Puerto Rico	1	0.1%
49	Romania	1	0.1%
50	Somalia	1	0.1%
51	Switzerland	1	0.1%
52	Viet Nam	1	0.1%