Rank	Countries/Territories	Count	Percent
1	United States	165	27.3%
2	China	139	23%
3	Germany	104	17.2%
4	Russia	18	3%
5	France	16	2.6%
6	Netherlands	14	2.3%
7	India	12	2%
8	United Kingdom	12	2%
9	Turkey	12	2%
10	Iran, Islamic Republic of	9	1.5%
11	Hungary	8	1.3%
12	Canada	7	1.2%
13	Australia	7	1.2%
14	Italy	7	1.2%
15	Spain	7	1.2%
16	Japan	6	1%
17	Ireland	5	0.8%
18	Singapore	5	0.8%
19	Egypt	5	0.8%
20	Czech Republic	4	0.7%
21	Belgium	4	0.7%
22	Cyprus	3	0.5%
23	Mexico	3	0.5%
24	Romania	3	0.5%
25	Israel	3	0.5%
26	Norway	2	0.3%
27	Korea, Republic of	2	0.3%
28	Saudi Arabia	2	0.3%
29	Colombia	2	0.3%
30	Brazil	2	0.3%
31	Bulgaria	2	0.3%
32	Hong Kong	2	0.3%
33	Thailand	2	0.3%
34	Ukraine	2	0.3%
35	Trinidad and Tobago	1	0.2%
36	Switzerland	1	0.2%
37	Indonesia	1	0.2%
38	South Africa	1	0.2%
39	Malaysia	1	0.2%
40	Peru	1	0.2%
41	Philippines	1	0.2%
42	Portugal	1	0.2%
43	Jordan	1	0.2%