Rank	Countries/Territories	Count	Percent
1	United States	403	38.7%
2	China	253	24.3%
3	Germany	84	8.1%
4	India	30	2.9%
5	Norway	23	2.2%
6	Iran, Islamic Republic of	21	2%
7	Japan	20	1.9%
8	Netherlands	17	1.6%
9	France	16	1.5%
10	Australia	13	1.2%
11	Brazil	11	1.1%
12	Ireland	11	1.1%
13	Korea, Republic of	11	1.1%
14	Singapore	11	1.1%
15	Romania	9	0.9%
16	Thailand	9	0.9%
17	Malaysia	8	0.8%
18	Hungary	7	0.7%
19	Italy	7	0.7%
20	Canada	7	0.7%
21	Turkey	7	0.7%
22	United Kingdom	7	0.7%
23	Taiwan	6	0.6%
24	Uganda	6	0.6%
25	Hong Kong	6	0.6%
26	Mexico	5	0.5%
27	Russia	5	0.5%
28	Switzerland	4	0.4%
29	Cyprus	4	0.4%
30	Egypt	4	0.4%
31	Belgium	2	0.2%
32	Poland	2	0.2%
33	South Africa	2	0.2%
34	Saudi Arabia	2	0.2%
35	Mauritius	2	0.2%
36	Mongolia	1	0.1%
37	Pakistan	1	0.1%
38	Bulgaria	1	0.1%
39	Finland	1	0.1%
40	Czech Republic	1	0.1%
41	Indonesia	1	0.1%