Rank	Countries/Territories	Count	Percent
1	United States	452	37.9%
2	China	401	33.6%
3	Germany	156	13.1%
4	Ireland	42	3.5%
5	Korea, Republic of	18	1.5%
6	India	16	1.3%
7	Canada	15	1.3%
8	Singapore	15	1.3%
9	Japan	12	1%
10	Iran, Islamic Republic of	9	0.8%
11	Australia	9	0.8%
12	Russia	9	0.8%
13	Netherlands	8	0.7%
14	Italy	4	0.3%
15	Belgium	4	0.3%
16	Cyprus	4	0.3%
17	Hong Kong	4	0.3%
18	France	3	0.3%
19	Thailand	3	0.3%
20	United Kingdom	2	0.2%
21	Taiwan	2	0.2%
22	Poland	2	0.2%
23	Sweden	1	0.1%
24	Philippines	1	0.1%
25	Mongolia	1	0.1%