Rank	Countries/Territories	Count	Percent
1	United States	693	50.3%
2	China	271	19.7%
3	Germany	138	10%
4	France	72	5.2%
5	Japan	26	1.9%
6	Netherlands	25	1.8%
7	United Kingdom	23	1.7%
8	Korea, Republic of	16	1.2%
9	Iran, Islamic Republic of	13	0.9%
10	Russia	12	0.9%
11	Ireland	10	0.7%
12	Thailand	10	0.7%
13	Singapore	9	0.7%
14	Australia	8	0.6%
15	Spain	7	0.5%
16	Taiwan	7	0.5%
17	Philippines	6	0.4%
18	Canada	6	0.4%
19	Cyprus	5	0.4%
20	Bulgaria	3	0.2%
21	Romania	3	0.2%
22	Pakistan	2	0.1%
23	Bangladesh	2	0.1%
24	Brunei Darussalam	2	0.1%
25	India	2	0.1%
26	Iraq	1	0.1%
27	Lithuania	1	0.1%
28	Malaysia	1	0.1%
29	Argentina	1	0.1%
30	Poland	1	0.1%
31	Switzerland	1	0.1%
32	Turkey	1	0.1%
33	Viet Nam	1	0.1%