Rank	Countries/Territories	Count	Percent
1	United States	564	45.4%
2	China	293	23.6%
3	Germany	104	8.4%
4	Japan	46	3.7%
5		45	3.6%
6	Australia	27	2.2%
7	India	20	1.6%
8	France	18	1.5%
9	Russia	16	1.3%
10	Singapore	13	1%
11	Netherlands	13	1%
12	Turkey	8	0.6%
13	Norway	7	0.6%
14	Korea, Republic of	7	0.6%
15	South Africa	6	0.5%
16	Hong Kong	5	0.4%
17	Argentina	5	0.4%
18	Canada	4	0.3%
19	United Kingdom	4	0.3%
20	Ukraine	3	0.2%
21	Sweden	3	0.2%
22	Ireland	3	0.2%
23	Brazil	3	0.2%
24	Cyprus	3	0.2%
25	Hungary	3	0.2%
26	Denmark	2	0.2%
27	Egypt	2	0.2%
28	Iraq	2	0.2%
29	Italy	2	0.2%
30	Poland	2	0.2%
31	Portugal	2	0.2%
32	Romania	1	0.1%
33	Iran, Islamic Republic of	1	0.1%
34	Ethiopia	1	0.1%
35	Czech Republic	1	0.1%
36	Austria	1	0.1%
37	Botswana	1	0.1%