Rank	Countries/Territories	Count	Percent
1	United States	511	39.3%
2	China	375	28.8%
3	Germany	82	6.3%
4	France	38	2.9%
5	Japan	29	2.2%
6	Netherlands	25	1.9%
7	Korea, Republic of	24	1.8%
8	Taiwan	23	1.8%
9	Hong Kong	21	1.6%
10	Australia	16	1.2%
11	Canada	14	1.1%
12	Greece	14	1.1%
13	India	13	1%
14		10	0.8%
15	Norway	10	0.8%
16	Spain	10	0.8%
17	Iran, Islamic Republic of	9	0.7%
18	Singapore	8	0.6%
19	Poland	7	0.5%
20	Malaysia	7	0.5%
21	Italy	5	0.4%
22	Cyprus	5	0.4%
23	Switzerland	5	0.4%
24	Latvia	4	0.3%
25	Russia	4	0.3%
26	Sweden	4	0.3%
27	Czech Republic	3	0.2%
28	United Kingdom	3	0.2%
29	Ireland	2	0.2%
30	Argentina	2	0.2%
31	Chile	2	0.2%
32	Bangladesh	2	0.2%
33	Brazil	2	0.2%
34	Sri Lanka	2	0.2%
35	Philippines	2	0.2%
36	Mexico	2	0.2%
37	Mongolia	1	0.1%
38	Bulgaria	1	0.1%
39	Egypt	1	0.1%
40	Ukraine	1	0.1%
41	Viet Nam	1	0.1%