Rank	Countries/Territories	Count	Percent
1	United States	337	42.2%
2	China	203	25.4%
3	Germany	75	9.4%
4	India	30	3.8%
5	France	21	2.6%
6	Ireland	18	2.3%
7	Canada	16	2%
8	Netherlands	14	1.8%
9	Japan	13	1.6%
10	Singapore	10	1.3%
11	Chile	9	1.1%
12	Argentina	6	0.8%
13	Australia	6	0.8%
14	Cyprus	6	0.8%
15	Hong Kong	6	0.8%
16	Russia	5	0.6%
17	United Kingdom	5	0.6%
18	Mongolia	3	0.4%
19	Malaysia	2	0.3%
20	Iran, Islamic Republic of	2	0.3%
21	Denmark	2	0.3%
22	Ukraine	2	0.3%
23	Thailand	2	0.3%
24	Turkey	1	0.1%
25	Switzerland	1	0.1%
26	Taiwan	1	0.1%
27	Czech Republic	1	0.1%
28	Korea, Republic of	1	0.1%