Rank	Countries/Territories	Count	Percent
1	United States	435	38.1%
2	China	297	26%
3	Germany	128	11.2%
4	Japan	53	4.6%
5	Ireland	41	3.6%
6	Canada	34	3%
7	Korea, Republic of	21	1.8%
8	Singapore	19	1.7%
9	India	18	1.6%
10	Italy	11	1%
11	Netherlands	10	0.9%
12	Austria	7	0.6%
13	Cyprus	7	0.6%
14	Brazil	6	0.5%
15	France	6	0.5%
16	Australia	5	0.4%
17	Hong Kong	5	0.4%
18	Chile	5	0.4%
19	Taiwan	5	0.4%
20	Russia	5	0.4%
21	Mexico	3	0.3%
22	Norway	3	0.3%
23	Turkey	3	0.3%
24	Ukraine	3	0.3%
25	Denmark	3	0.3%
26	Croatia	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	United Kingdom	2	0.2%
29	Lithuania	2	0.2%
30	New Zealand	1	0.1%
31	Bulgaria	1	0.1%