Rank	Countries/Territories	Count	Percent
1	United States	537	41.6%
2	China	272	21.1%
3	Germany	160	12.4%
4	Canada	47	3.6%
5	India	37	2.9%
6	France	23	1.8%
7	Korea, Republic of	22	1.7%
8	Japan	21	1.6%
9	United Kingdom	21	1.6%
10	Netherlands	17	1.3%
11	Singapore	16	1.2%
12	Iran, Islamic Republic of	15	1.2%
13	Cyprus	12	0.9%
14	Australia	10	0.8%
15	Ukraine	10	0.8%
16	Ireland	7	0.5%
17	Bahrain	6	0.5%
18	Ecuador	6	0.5%
19	Spain	6	0.5%
20	Taiwan	4	0.3%
21	Russia	4	0.3%
22	Malaysia	4	0.3%
23	Bangladesh	4	0.3%
24	Finland	4	0.3%
25	Egypt	3	0.2%
26	Indonesia	3	0.2%
27	Latvia	3	0.2%
28	Oman	3	0.2%
29	Pakistan	2	0.2%
30	New Zealand	2	0.2%
31	Slovenia	2	0.2%
32	Turkey	2	0.2%
33	Jordan	2	0.2%
34	Sweden	1	0.1%
35	Nepal	1	0.1%
36	Portugal	1	0.1%
37	Romania	1	0.1%