Rank	Countries/Territories	Count	Percent
1	United States	312	42.6%
2	China	128	17.5%
3	Germany	61	8.3%
4	Japan	58	7.9%
5	France	28	3.8%
6	Ireland	20	2.7%
7	Singapore	16	2.2%
8	Canada	15	2%
9	Netherlands	13	1.8%
10	Poland	13	1.8%
11	India	12	1.6%
12	Bulgaria	10	1.4%
13	United Kingdom	10	1.4%
14	Nigeria	6	0.8%
15	Spain	4	0.5%
16	Egypt	3	0.4%
17	Cyprus	3	0.4%
18	Ecuador	2	0.3%
19	Korea, Republic of	2	0.3%
20	Latvia	2	0.3%
21	Taiwan	2	0.3%
22	Slovenia	2	0.3%
23	Saudi Arabia	2	0.3%
24	Turkey	2	0.3%
25	Thailand	1	0.1%
26	Malaysia	1	0.1%
27	Mongolia	1	0.1%
28	Morocco	1	0.1%
29	Australia	1	0.1%
30	Colombia	1	0.1%