Rank	Countries/Territories	Count	Percent
1	United States	336	31.7%
2	China	325	30.7%
3	Germany	51	4.8%
4	India	38	3.6%
5	Russia	30	2.8%
6	Canada	22	2.1%
7	Brazil	19	1.8%
8	Korea, Republic of	18	1.7%
9	Latvia	17	1.6%
10	Singapore	17	1.6%
11	Japan	13	1.2%
12	Israel	11	1%
13	Argentina	11	1%
14	Czech Republic	11	1%
15	Romania	11	1%
16	United Kingdom	10	0.9%
17	Belgium	10	0.9%
18	Australia	9	0.8%
19	Italy	9	0.8%
20	Spain	9	0.8%
21	Sweden	8	0.8%
22	Netherlands	8	0.8%
23	Denmark	6	0.6%
24	Egypt	6	0.6%
25	Chile	6	0.6%
26	France	5	0.5%
27	Iran, Islamic Republic of	5	0.5%
28	Turkey	4	0.4%
29	Taiwan	3	0.3%
30	Hong Kong	3	0.3%
31	Ireland	3	0.3%
32	Palestine, State of	3	0.3%
33	Poland	3	0.3%
34	Norway	2	0.2%
35	Greece	2	0.2%
36	Cuba	2	0.2%
37	South Africa	2	0.2%
38	Thailand	2	0.2%
39	Ukraine	1	0.1%
40	Georgia	1	0.1%
41	Estonia	1	0.1%
42	Finland	1	0.1%
43	Azerbaijan	1	0.1%
44	Cayman Islands	1	0.1%
45	Croatia	1	0.1%
46	Indonesia	1	0.1%
47	Jordan	1	0.1%