Rank	Countries/Territories	Count	Percent
1	United States	421	37.9%
2	China	393	35.4%
3	Germany	107	9.6%
4	Australia	36	3.2%
5	Brazil	26	2.3%
6		17	1.5%
7	Norway	16	1.4%
8	Singapore	14	1.3%
9	Japan	14	1.3%
10	Netherlands	13	1.2%
11	India	7	0.6%
12	Switzerland	6	0.5%
13	United Kingdom	5	0.5%
14	Malaysia	4	0.4%
15	Ireland	4	0.4%
16	France	3	0.3%
17	Canada	3	0.3%
18	Korea, Republic of	3	0.3%
19	Sweden	2	0.2%
20	Taiwan	2	0.2%
21	Cyprus	2	0.2%
22	Belgium	2	0.2%
23	Ghana	2	0.2%
24	Hong Kong	2	0.2%
25	Hungary	2	0.2%
26	Iran, Islamic Republic of	1	0.1%
27	Argentina	1	0.1%
28	Spain	1	0.1%
29	Russia	1	0.1%