Rank	Countries/Territories	Count	Percent
1	United States	303	37.8%
2	China	272	33.9%
3	Germany	73	9.1%
4	India	18	2.2%
5	Japan	18	2.2%
6	Pakistan	17	2.1%
7	Ireland	13	1.6%
8	Singapore	12	1.5%
9	United Kingdom	9	1.1%
10	Australia	9	1.1%
11	Cyprus	7	0.9%
12	Korea, Republic of	7	0.9%
13	France	6	0.7%
14	Netherlands	5	0.6%
15	Taiwan	3	0.4%
16	Ukraine	3	0.4%
17	Portugal	3	0.4%
18	Romania	3	0.4%
19	Czech Republic	3	0.4%
20	Greece	3	0.4%
21	Egypt	2	0.2%
22	Canada	2	0.2%
23	Hungary	2	0.2%
24	Italy	2	0.2%
25	Spain	2	0.2%
26	Russia	1	0.1%
27	Latvia	1	0.1%
28	Iran, Islamic Republic of	1	0.1%
29	Croatia	1	0.1%
30	Hong Kong	1	0.1%