Rank	Countries/Territories	Count	Percent
1	United States	295	43.1%
2	China	168	24.6%
3	Germany	59	8.6%
4	Japan	19	2.8%
5	Netherlands	17	2.5%
6	India	15	2.2%
7	Ireland	11	1.6%
8		7	1%
9	Norway	7	1%
10	Turkey	7	1%
11	Singapore	7	1%
12	Taiwan	6	0.9%
13	United Kingdom	6	0.9%
14	Romania	6	0.9%
15	Canada	6	0.9%
16	France	5	0.7%
17	Italy	4	0.6%
18	Iran, Islamic Republic of	4	0.6%
19	Argentina	4	0.6%
20	Cyprus	4	0.6%
21	Korea, Republic of	4	0.6%
22	Madagascar	3	0.4%
23	Greece	3	0.4%
24	Egypt	2	0.3%
25	Armenia	2	0.3%
26	New Zealand	2	0.3%
27	Malaysia	2	0.3%
28	Sweden	2	0.3%
29	Switzerland	1	0.1%
30	Thailand	1	0.1%
31	Trinidad and Tobago	1	0.1%
32	Malawi	1	0.1%
33	Australia	1	0.1%
34	Colombia	1	0.1%
35	Hong Kong	1	0.1%