Rank	Countries/Territories	Count	Percent
1	United States	508	58.9%
2	Germany	106	12.3%
3	China	98	11.4%
4	Australia	24	2.8%
5	France	20	2.3%
6	Singapore	13	1.5%
7	Cyprus	12	1.4%
8	Japan	11	1.3%
9	Netherlands	10	1.2%
10	Russia	8	0.9%
11	United Kingdom	7	0.8%
12	Canada	7	0.8%
13	Mexico	5	0.6%
14	Indonesia	4	0.5%
15	Argentina	4	0.5%
16	Iran, Islamic Republic of	3	0.3%
17	Iraq	2	0.2%
18	Malaysia	2	0.2%
19	Egypt	2	0.2%
20	Ukraine	2	0.2%
21	Norway	2	0.2%
22	Pakistan	2	0.2%
23	Sweden	2	0.2%
24	Taiwan	1	0.1%
25	Thailand	1	0.1%
26	Spain	1	0.1%
27	Poland	1	0.1%
28	India	1	0.1%
29	Korea, Republic of	1	0.1%
30	Ireland	1	0.1%
31	Italy	1	0.1%