Rank	Countries/Territories	Count	Percent
1	United States	548	41.6%
2	China	308	23.4%
3	Germany	164	12.5%
4	Brazil	47	3.6%
5	Netherlands	37	2.8%
6	Japan	34	2.6%
7	France	23	1.7%
8	Norway	19	1.4%
9	Hong Kong	18	1.4%
10	Korea, Republic of	17	1.3%
11	India	15	1.1%
12	Singapore	15	1.1%
13	Ireland	8	0.6%
14	Iran, Islamic Republic of	6	0.5%
15	Cyprus	6	0.5%
16	Argentina	5	0.4%
17	New Zealand	5	0.4%
18	Spain	5	0.4%
19	United Kingdom	5	0.4%
20	Taiwan	3	0.2%
21	Israel	3	0.2%
22	Italy	3	0.2%
23	Portugal	3	0.2%
24	Canada	3	0.2%
25	Bangladesh	2	0.2%
26	Malaysia	2	0.2%
27	Mongolia	2	0.2%
28	Russia	2	0.2%
29	Nicaragua	2	0.2%
30	Pakistan	1	0.1%
31	Turkey	1	0.1%
32	Ukraine	1	0.1%
33	United Arab Emirates	1	0.1%
34	Iraq	1	0.1%
35	Egypt	1	0.1%
36	Australia	1	0.1%