Rank	Countries/Territories	Count	Percent
1	United States	791	42.3%
2	China	452	24.2%
3	Germany	335	17.9%
4	Canada	53	2.8%
5	Norway	31	1.7%
6	France	24	1.3%
7	Netherlands	20	1.1%
8	Japan	19	1%
9	Korea, Republic of	19	1%
10	Cyprus	13	0.7%
11	Australia	13	0.7%
12	United Kingdom	11	0.6%
13	Ukraine	10	0.5%
14	India	10	0.5%
15	Russia	9	0.5%
16	Switzerland	6	0.3%
17	Iran, Islamic Republic of	6	0.3%
18	Ireland	5	0.3%
19	Bangladesh	4	0.2%
20	Saudi Arabia	4	0.2%
21	Malaysia	4	0.2%
22	Lithuania	3	0.2%
23	Bosnia and Herzegovina	3	0.2%
24	Denmark	3	0.2%
25	Egypt	3	0.2%
26	Hong Kong	3	0.2%
27	Iceland	2	0.1%
28	Latvia	2	0.1%
29		2	0.1%
30	Argentina	2	0.1%
31	Romania	2	0.1%
32	Sweden	2	0.1%
33	Turkey	2	0.1%
34	Singapore	1	0.1%