Rank	Countries/Territories	Count	Percent
1	United States	452	37.7%
2	China	422	35.2%
3	Germany	89	7.4%
4	India	72	6%
5	Korea, Republic of	50	4.2%
6	Japan	23	1.9%
7	Ireland	12	1%
8	Taiwan	11	0.9%
9	Singapore	10	0.8%
10	Netherlands	7	0.6%
11	Iran, Islamic Republic of	6	0.5%
12	Cyprus	6	0.5%
13	France	5	0.4%
14	Hong Kong	4	0.3%
15	United Kingdom	4	0.3%
16	Spain	3	0.2%
17	Lithuania	3	0.2%
18	Canada	3	0.2%
19	Argentina	3	0.2%
20	Australia	2	0.2%
21	Egypt	2	0.2%
22	Greece	2	0.2%
23	Latvia	2	0.2%
24	Norway	2	0.2%
25	Russia	1	0.1%
26	Mongolia	1	0.1%
27	Costa Rica	1	0.1%
28	Bangladesh	1	0.1%
29	Brazil	1	0.1%