Rank	Countries/Territories	Count	Percent
1	United States	532	39.8%
2	China	339	25.4%
3	Germany	109	8.2%
4	India	70	5.2%
5	Iran, Islamic Republic of	38	2.8%
6	Russia	30	2.2%
7	France	21	1.6%
8	Japan	19	1.4%
9	Canada	15	1.1%
10	Hong Kong	13	1%
11	Ireland	13	1%
12	United Kingdom	13	1%
13	Netherlands	11	0.8%
14	Colombia	11	0.8%
15	Australia	10	0.7%
16	Singapore	9	0.7%
17	Norway	6	0.4%
18	Korea, Republic of	6	0.4%
19	Cyprus	6	0.4%
20	El Salvador	6	0.4%
21	Turkey	6	0.4%
22	Romania	5	0.4%
23	Malaysia	5	0.4%
24	Yemen	4	0.3%
25	Senegal	3	0.2%
26	Pakistan	3	0.2%
27	Peru	3	0.2%
28	Ecuador	3	0.2%
29	Egypt	2	0.1%
30	Indonesia	2	0.1%
31	Israel	2	0.1%
32	Poland	2	0.1%
33	Spain	2	0.1%
34	Switzerland	2	0.1%
35	Taiwan	2	0.1%
36	Tanzania, United Republic of	1	0.1%
37	Thailand	1	0.1%
38	Mexico	1	0.1%
39	Luxembourg	1	0.1%
40	Philippines	1	0.1%
41	Ethiopia	1	0.1%
42	Denmark	1	0.1%
43	Bangladesh	1	0.1%
44	Burundi	1	0.1%
45	Argentina	1	0.1%
46	Uganda	1	0.1%
47	Ukraine	1	0.1%
48	Viet Nam	1	0.1%