Rank	Countries/Territories	Count	Percent
1	United States	573	45.7%
2	China	394	31.4%
3	Germany	66	5.3%
4	India	51	4.1%
5	Japan	36	2.9%
6	Russia	18	1.4%
7	Brazil	13	1%
8	Korea, Republic of	12	1%
9	Netherlands	12	1%
10	Canada	8	0.6%
11	Australia	6	0.5%
12	Senegal	6	0.5%
13	Singapore	6	0.5%
14	United Kingdom	6	0.5%
15	Italy	5	0.4%
16	Hong Kong	4	0.3%
17	Ukraine	4	0.3%
18	France	3	0.2%
19	Taiwan	3	0.2%
20	Switzerland	2	0.2%
21	Spain	2	0.2%
22	Pakistan	2	0.2%
23	Lithuania	2	0.2%
24	Colombia	2	0.2%
25	Algeria	2	0.2%
26	Belarus	2	0.2%
27	Belgium	2	0.2%
28	United Arab Emirates	2	0.2%
29	Argentina	1	0.1%
30	Bangladesh	1	0.1%
31	Croatia	1	0.1%
32	Georgia	1	0.1%
33	Ireland	1	0.1%
34	Mongolia	1	0.1%
35	Poland	1	0.1%
36	Portugal	1	0.1%
37	Sweden	1	0.1%
38	Turkey	1	0.1%