Rank	Countries/Territories	Count	Percent
1	United States	536	50.1%
2	China	163	15.2%
3	Germany	83	7.8%
4	Japan	42	3.9%
5	Australia	39	3.6%
6	Netherlands	35	3.3%
7	United Kingdom	19	1.8%
8	Russia	15	1.4%
9	Switzerland	14	1.3%
10	Singapore	12	1.1%
11	France	10	0.9%
12	India	9	0.8%
13	Ireland	9	0.8%
14	Canada	9	0.8%
15	Norway	8	0.7%
16	Portugal	8	0.7%
17	Hong Kong	7	0.7%
18	Poland	6	0.6%
19	Denmark	5	0.5%
20	Cyprus	4	0.4%
21	Taiwan	4	0.4%
22	Latvia	4	0.4%
23	New Zealand	3	0.3%
24	Austria	3	0.3%
25	Belgium	3	0.3%
26	Iran, Islamic Republic of	3	0.3%
27	Sweden	3	0.3%
28	Malaysia	2	0.2%
29	Korea, Republic of	2	0.2%
30	Pakistan	2	0.2%
31	Turkey	1	0.1%
32	Ukraine	1	0.1%
33	Mongolia	1	0.1%
34	Lithuania	1	0.1%
35	Jordan	1	0.1%
36	Indonesia	1	0.1%
37	Brazil	1	0.1%
38	Argentina	1	0.1%