Rank	Countries/Territories	Count	Percent
1	United States	511	34.1%
2	China	475	31.7%
3	Germany	203	13.6%
4	Canada	58	3.9%
5	Australia	33	2.2%
6	France	30	2%
7	Japan	30	2%
8	Singapore	30	2%
9	Netherlands	21	1.4%
10	Iran, Islamic Republic of	21	1.4%
11	United Kingdom	18	1.2%
12	Cyprus	13	0.9%
13	India	8	0.5%
14	Taiwan	5	0.3%
15	Argentina	5	0.3%
16	Turkey	4	0.3%
17	Spain	4	0.3%
18	Sweden	4	0.3%
19	Ukraine	3	0.2%
20	Israel	3	0.2%
21	Italy	2	0.1%
22	Ireland	2	0.1%
23	Egypt	2	0.1%
24	Belgium	2	0.1%
25	Bulgaria	2	0.1%
26	Lebanon	2	0.1%
27	Mongolia	1	0.1%
28	Norway	1	0.1%
29	Switzerland	1	0.1%
30	South Africa	1	0.1%
31	Bangladesh	1	0.1%
32	Denmark	1	0.1%
33	Hong Kong	1	0.1%