Rank	Countries/Territories	Count	Percent
1	United States	417	39.6%
2	China	284	27%
3	Germany	92	8.7%
4	Russia	52	4.9%
5	India	18	1.7%
6	Taiwan	16	1.5%
7	France	12	1.1%
8	Ireland	12	1.1%
9	Korea, Republic of	12	1.1%
10	Netherlands	11	1%
11	Australia	11	1%
12	Iran, Islamic Republic of	9	0.9%
13	Lithuania	6	0.6%
14	Japan	6	0.6%
15	Cyprus	6	0.6%
16	United Kingdom	6	0.6%
17	Sweden	5	0.5%
18	Thailand	5	0.5%
19	Brazil	5	0.5%
20	Argentina	5	0.5%
21	Canada	5	0.5%
22	Malaysia	5	0.5%
23	Mongolia	4	0.4%
24	Palestine, State of	4	0.4%
25	Indonesia	4	0.4%
26	Ethiopia	3	0.3%
27	Singapore	3	0.3%
28	Italy	3	0.3%
29	Ukraine	3	0.3%
30	United Arab Emirates	2	0.2%
31	Turkey	2	0.2%
32	Poland	2	0.2%
33	South Africa	2	0.2%
34	Hong Kong	2	0.2%
35	Bangladesh	2	0.2%
36	Bulgaria	2	0.2%
37	Denmark	2	0.2%
38	Cameroon	1	0.1%
39	Austria	1	0.1%
40	Bahamas	1	0.1%
41	Hungary	1	0.1%
42	Finland	1	0.1%
43	Spain	1	0.1%
44	Philippines	1	0.1%
45	Iraq	1	0.1%
46	Mauritius	1	0.1%
47	Mexico	1	0.1%
48	Macao	1	0.1%
49	Qatar	1	0.1%