Rank	Countries/Territories	Count	Percent
1	United States	497	37.9%
2	China	495	37.8%
3	Germany	64	4.9%
4	Japan	35	2.7%
5	Russia	24	1.8%
6	France	23	1.8%
7	India	21	1.6%
8	Singapore	19	1.5%
9	Canada	17	1.3%
10	Latvia	13	1%
11	Pakistan	11	0.8%
12	Hong Kong	11	0.8%
13	Australia	7	0.5%
14	Greece	6	0.5%
15	Spain	6	0.5%
16	Taiwan	5	0.4%
17	Korea, Republic of	5	0.4%
18	Israel	5	0.4%
19	Indonesia	5	0.4%
20	Netherlands	4	0.3%
21	New Zealand	4	0.3%
22	South Africa	3	0.2%
23	Portugal	3	0.2%
24	United Kingdom	2	0.2%
25	Thailand	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Ireland	2	0.2%
28	Hungary	2	0.2%
29	Bangladesh	2	0.2%
30	Brazil	2	0.2%
31	Argentina	2	0.2%
32	Cyprus	2	0.2%
33	Czech Republic	1	0.1%
34	Congo, The Democratic Republic of The	1	0.1%
35	Turkey	1	0.1%
36	Ukraine	1	0.1%
37	Poland	1	0.1%
38	Norway	1	0.1%
39	Italy	1	0.1%
40	Jordan	1	0.1%
41	Viet Nam	1	0.1%