Rank	Countries/Territories	Count	Percent
1	United States	429	44%
2	China	252	25.9%
3	Germany	58	6%
4		30	3.1%
5	Brazil	26	2.7%
6	Taiwan	24	2.5%
7	India	22	2.3%
8	Russia	15	1.5%
9	France	14	1.4%
10	Japan	14	1.4%
11	Hong Kong	11	1.1%
12	Korea, Republic of	9	0.9%
13	Australia	9	0.9%
14	Malaysia	7	0.7%
15	United Kingdom	7	0.7%
16	Senegal	6	0.6%
17	Netherlands	5	0.5%
18	Mongolia	4	0.4%
19	Singapore	4	0.4%
20	Ireland	3	0.3%
21	Argentina	3	0.3%
22	Canada	3	0.3%
23	Italy	2	0.2%
24	Romania	2	0.2%
25	Saudi Arabia	2	0.2%
26	Ukraine	2	0.2%
27	Thailand	1	0.1%
28	Slovakia	1	0.1%
29	South Africa	1	0.1%
30	Panama	1	0.1%
31	Poland	1	0.1%
32	Cyprus	1	0.1%
33	Belgium	1	0.1%
34	Kuwait	1	0.1%
35	Lithuania	1	0.1%
36	Georgia	1	0.1%
37	Greece	1	0.1%