Rank	Countries/Territories	Count	Percent
1	United States	411	36.3%
2	China	296	26.1%
3	Germany	112	9.9%
4	India	54	4.8%
5	Japan	53	4.7%
6	Netherlands	27	2.4%
7	France	21	1.9%
8	Korea, Republic of	15	1.3%
9	Australia	14	1.2%
10	Saudi Arabia	13	1.1%
11	Taiwan	12	1.1%
12	Senegal	9	0.8%
13	Canada	9	0.8%
14	Cyprus	8	0.7%
15	Egypt	8	0.7%
16	Singapore	8	0.7%
17	Argentina	6	0.5%
18	Hong Kong	6	0.5%
19	Spain	5	0.4%
20	Italy	5	0.4%
21	Iran, Islamic Republic of	4	0.4%
22	United Kingdom	4	0.4%
23	Russia	3	0.3%
24	Turkey	3	0.3%
25	Ireland	3	0.3%
26	Mongolia	3	0.3%
27	Guatemala	3	0.3%
28	Denmark	3	0.3%
29	Colombia	2	0.2%
30	Costa Rica	2	0.2%
31	Bangladesh	2	0.2%
32	Norway	2	0.2%
33	Mexico	2	0.2%
34	Sweden	1	0.1%
35	Switzerland	1	0.1%
36	Belgium	1	0.1%
37	Brazil	1	0.1%
38	Chile	1	0.1%