Rank	Countries/Territories	Count	Percent
1	United States	378	43.3%
2	China	166	19%
3	Russia	107	12.3%
4	Germany	29	3.3%
5	India	25	2.9%
6	Brazil	21	2.4%
7	Italy	20	2.3%
8	Korea, Republic of	12	1.4%
9	United Kingdom	12	1.4%
10	Greece	11	1.3%
11	Japan	9	1%
12	Portugal	9	1%
13	France	7	0.8%
14	Hong Kong	6	0.7%
15	Mexico	6	0.7%
16	Spain	6	0.7%
17	Netherlands	5	0.6%
18	Ireland	4	0.5%
19	Australia	4	0.5%
20	Viet Nam	4	0.5%
21	Canada	3	0.3%
22	Turkey	3	0.3%
23	Switzerland	2	0.2%
24	Taiwan	2	0.2%
25	Singapore	2	0.2%
26	South Africa	2	0.2%
27	Malta	2	0.2%
28	Argentina	2	0.2%
29	Finland	2	0.2%
30	Iceland	2	0.2%
31	Iran, Islamic Republic of	1	0.1%
32	Czech Republic	1	0.1%
33	Egypt	1	0.1%
34	Lithuania	1	0.1%
35	Malaysia	1	0.1%
36	New Zealand	1	0.1%
37	Nepal	1	0.1%
38	Sweden	1	0.1%
39	Ukraine	1	0.1%