Rank	Countries/Territories	Count	Percent
1	United States	413	41.3%
2	China	217	21.7%
3	Russia	109	10.9%
4	Germany	48	4.8%
5	India	29	2.9%
6	Brazil	21	2.1%
7	Italy	20	2%
8	United Kingdom	14	1.4%
9	Korea, Republic of	12	1.2%
10	Portugal	12	1.2%
11	Greece	11	1.1%
12	Japan	9	0.9%
13	France	8	0.8%
14	Hong Kong	6	0.6%
15	Australia	6	0.6%
16	Mexico	6	0.6%
17	Spain	6	0.6%
18	Netherlands	5	0.5%
19	Argentina	4	0.4%
20	Ireland	4	0.4%
21	Viet Nam	4	0.4%
22	Turkey	3	0.3%
23	Canada	3	0.3%
24	Singapore	3	0.3%
25	South Africa	2	0.2%
26	Romania	2	0.2%
27	Switzerland	2	0.2%
28	Taiwan	2	0.2%
29	Bangladesh	2	0.2%
30	Finland	2	0.2%
31	Iceland	2	0.2%
32	Ukraine	2	0.2%
33	Malta	2	0.2%
34	Iran, Islamic Republic of	1	0.1%
35	Czech Republic	1	0.1%
36	Egypt	1	0.1%
37	Sweden	1	0.1%
38	New Zealand	1	0.1%
39	Mongolia	1	0.1%
40	Nepal	1	0.1%
41	Lithuania	1	0.1%
42	Malaysia	1	0.1%