Rank	Countries/Territories	Count	Percent
1	United States	297	37.3%
2	China	268	33.6%
3	Germany	95	11.9%
4	Brazil	26	3.3%
5		17	2.1%
6	Norway	16	2%
7	Singapore	12	1.5%
8	Japan	11	1.4%
9	Netherlands	9	1.1%
10	India	7	0.9%
11	Switzerland	5	0.6%
12	Ireland	4	0.5%
13	Malaysia	4	0.5%
14	Australia	4	0.5%
15	Korea, Republic of	3	0.4%
16	Cyprus	2	0.3%
17	France	2	0.3%
18	Belgium	2	0.3%
19	Ghana	2	0.3%
20	Hong Kong	2	0.3%
21	Hungary	2	0.3%
22	Taiwan	2	0.3%
23	United Kingdom	2	0.3%
24	Spain	1	0.1%
25	Canada	1	0.1%
26	Iran, Islamic Republic of	1	0.1%