Rank	Countries/Territories	Count	Percent
1	United States	599	40.6%
2	China	309	20.9%
3	Germany	97	6.6%
4	Norway	53	3.6%
5	India	52	3.5%
6	Canada	46	3.1%
7	Netherlands	42	2.8%
8	Russia	35	2.4%
9	Sweden	32	2.2%
10	Brazil	25	1.7%
11	Latvia	18	1.2%
12	Korea, Republic of	16	1.1%
13	Australia	16	1.1%
14	Serbia	16	1.1%
15	France	11	0.7%
16	Japan	11	0.7%
17	Singapore	8	0.5%
18	Turkey	7	0.5%
19	Morocco	7	0.5%
20	Libya	5	0.3%
21	Iran, Islamic Republic of	5	0.3%
22	Ireland	4	0.3%
23	Denmark	4	0.3%
24	Hong Kong	4	0.3%
25	Ukraine	4	0.3%
26	United Kingdom	4	0.3%
27	Spain	4	0.3%
28	South Africa	3	0.2%
29	Poland	3	0.2%
30	Taiwan	3	0.2%
31	Luxembourg	3	0.2%
32	Czech Republic	3	0.2%
33	Colombia	3	0.2%
34	Cote D'ivoire	2	0.1%
35	Cyprus	2	0.1%
36	Lebanon	2	0.1%
37	Switzerland	2	0.1%
38	Syrian Arab Republic	2	0.1%
39	Slovenia	2	0.1%
40	Seychelles	2	0.1%
41	Slovakia	1	0.1%
42	Hungary	1	0.1%
43	Nepal	1	0.1%
44	Pakistan	1	0.1%
45	Palestine, State of	1	0.1%
46	Peru	1	0.1%
47	Belgium	1	0.1%
48	Algeria	1	0.1%
49	Argentina	1	0.1%
50	Israel	1	0.1%