Rank	Countries/Territories	Count	Percent
1	United States	289	45.2%
2	China	163	25.5%
3	Germany	68	10.6%
4	France	50	7.8%
5	Canada	15	2.3%
6	Netherlands	9	1.4%
7	India	6	0.9%
8	Singapore	6	0.9%
9	Ukraine	3	0.5%
10	Norway	3	0.5%
11	Russia	3	0.5%
12	Japan	3	0.5%
13	Cyprus	3	0.5%
14	Hong Kong	2	0.3%
15	Bulgaria	2	0.3%
16	Argentina	2	0.3%
17	Malaysia	2	0.3%
18	Indonesia	2	0.3%
19	Ireland	2	0.3%
20	Switzerland	2	0.3%
21	United Kingdom	1	0.2%
22	Iran, Islamic Republic of	1	0.2%
23	Bangladesh	1	0.2%
24	Denmark	1	0.2%