Rank	Countries/Territories	Count	Percent
1	United States	304	46.1%
2	China	177	26.8%
3	Germany	46	7%
4	France	14	2.1%
5	Canada	10	1.5%
6	Japan	8	1.2%
7	Russia	7	1.1%
8	United Kingdom	7	1.1%
9	Sweden	6	0.9%
10	Taiwan	6	0.9%
11	Korea, Republic of	6	0.9%
12	Netherlands	6	0.9%
13	Australia	6	0.9%
14	Argentina	5	0.8%
15	Turkey	5	0.8%
16	Mauritius	4	0.6%
17	Italy	3	0.5%
18	Uganda	3	0.5%
19	Bangladesh	3	0.5%
20	India	3	0.5%
21	Iran, Islamic Republic of	3	0.5%
22	Ireland	2	0.3%
23	Israel	2	0.3%
24	Denmark	2	0.3%
25	Belgium	2	0.3%
26	Ukraine	2	0.3%
27	Singapore	2	0.3%
28	Spain	2	0.3%
29	Norway	2	0.3%
30	Philippines	2	0.3%
31	Hong Kong	2	0.3%
32	Malaysia	1	0.2%
33	Switzerland	1	0.2%
34	Syrian Arab Republic	1	0.2%
35	Austria	1	0.2%
36	Cyprus	1	0.2%
37	Czech Republic	1	0.2%
38	Egypt	1	0.2%
39	Georgia	1	0.2%