Rank	Countries/Territories	Count	Percent
1	United States	460	33.5%
2	China	397	28.9%
3	Germany	64	4.7%
4	Canada	58	4.2%
5	India	39	2.8%
6	Russia	32	2.3%
7	Spain	32	2.3%
8	Brazil	26	1.9%
9	Singapore	20	1.5%
10	Korea, Republic of	18	1.3%
11	Latvia	17	1.2%
12	Japan	16	1.2%
13	Argentina	16	1.2%
14	Czech Republic	13	0.9%
15	Italy	13	0.9%
16	Romania	12	0.9%
17	Netherlands	12	0.9%
18	Israel	11	0.8%
19	Australia	11	0.8%
20	Belgium	11	0.8%
21	United Kingdom	10	0.7%
22	Sweden	8	0.6%
23	Denmark	6	0.4%
24	Egypt	6	0.4%
25	Chile	6	0.4%
26	Hong Kong	6	0.4%
27	Iran, Islamic Republic of	5	0.4%
28	France	5	0.4%
29	Turkey	5	0.4%
30	Poland	4	0.3%
31	Palestine, State of	3	0.2%
32	Taiwan	3	0.2%
33	Ireland	3	0.2%
34	Jordan	3	0.2%
35	Norway	2	0.1%
36	Pakistan	2	0.1%
37	Greece	2	0.1%
38	Cuba	2	0.1%
39	Thailand	2	0.1%
40	South Africa	2	0.1%
41	Ukraine	1	0.1%
42	Portugal	1	0.1%
43	Croatia	1	0.1%
44	Estonia	1	0.1%
45	Finland	1	0.1%
46	Cayman Islands	1	0.1%
47	Azerbaijan	1	0.1%
48	Armenia	1	0.1%
49	Georgia	1	0.1%
50	Indonesia	1	0.1%
51	Mexico	1	0.1%