Rank	Countries/Territories	Count	Percent
1	United States	466	43.1%
2	China	315	29.1%
3	Germany	88	8.1%
4	Canada	44	4.1%
5	Japan	30	2.8%
6	France	27	2.5%
7	Korea, Republic of	14	1.3%
8	United Kingdom	12	1.1%
9	India	12	1.1%
10	Netherlands	12	1.1%
11	Russia	10	0.9%
12	Iran, Islamic Republic of	8	0.7%
13	Australia	6	0.6%
14	Cyprus	5	0.5%
15	Hong Kong	4	0.4%
16	Singapore	4	0.4%
17	Thailand	3	0.3%
18	Egypt	3	0.3%
19	Argentina	3	0.3%
20	Iraq	2	0.2%
21	Ireland	2	0.2%
22	Norway	2	0.2%
23	Philippines	2	0.2%
24	Taiwan	2	0.2%
25	Malaysia	2	0.2%
26	Turkey	1	0.1%
27	Viet Nam	1	0.1%
28	Portugal	1	0.1%
29	Romania	1	0.1%