Rank	Countries/Territories	Count	Percent
1	United States	291	44.8%
2	China	180	27.7%
3	Germany	53	8.2%
4	France	14	2.2%
5	Ireland	13	2%
6	Netherlands	12	1.8%
7	Switzerland	12	1.8%
8	Singapore	8	1.2%
9	Korea, Republic of	8	1.2%
10	Iran, Islamic Republic of	7	1.1%
11	Japan	6	0.9%
12	Mexico	6	0.9%
13	United Kingdom	6	0.9%
14	Cyprus	5	0.8%
15	Australia	4	0.6%
16	Greece	3	0.5%
17	Sweden	3	0.5%
18	Philippines	3	0.5%
19	Saudi Arabia	3	0.5%
20	Spain	2	0.3%
21	Ukraine	2	0.3%
22	Bulgaria	2	0.3%
23	Costa Rica	2	0.3%
24	Canada	1	0.2%
25	Italy	1	0.2%
26	Malaysia	1	0.2%
27	Norway	1	0.2%