Rank	Countries/Territories	Count	Percent
1	United States	582	41.1%
2	China	294	20.8%
3	Germany	101	7.1%
4	Russia	49	3.5%
5	Netherlands	47	3.3%
6	Canada	36	2.5%
7	Hong Kong	35	2.5%
8	Ireland	25	1.8%
9	Australia	23	1.6%
10	France	21	1.5%
11	India	18	1.3%
12	Taiwan	17	1.2%
13	United Kingdom	13	0.9%
14	Norway	13	0.9%
15	Iran, Islamic Republic of	12	0.8%
16	Korea, Republic of	12	0.8%
17	Romania	12	0.8%
18	Ukraine	10	0.7%
19	Singapore	10	0.7%
20	Japan	10	0.7%
21	Cyprus	8	0.6%
22	Egypt	6	0.4%
23	Belgium	6	0.4%
24	Brazil	5	0.4%
25	Thailand	5	0.4%
26	Mexico	4	0.3%
27	Morocco	3	0.2%
28	Philippines	3	0.2%
29	Saudi Arabia	2	0.1%
30	Slovenia	2	0.1%
31	South Africa	2	0.1%
32	Spain	2	0.1%
33	Sweden	2	0.1%
34	Turkey	2	0.1%
35	Yemen	2	0.1%
36	Malaysia	2	0.1%
37	Mongolia	2	0.1%
38	Pakistan	2	0.1%
39	Italy	2	0.1%
40	Greece	2	0.1%
41	Argentina	1	0.1%
42	Estonia	1	0.1%
43	Denmark	1	0.1%
44	Austria	1	0.1%
45	Bangladesh	1	0.1%
46	Chile	1	0.1%
47	Cote D'ivoire	1	0.1%
48	Indonesia	1	0.1%
49	Lithuania	1	0.1%
50	Palestine, State of	1	0.1%
51	Viet Nam	1	0.1%
52	Poland	1	0.1%