Rank	Countries/Territories	Count	Percent
1	United States	445	38.1%
2	China	369	31.6%
3	Germany	116	9.9%
4	France	47	4%
5	United Kingdom	39	3.3%
6	Japan	32	2.7%
7	Netherlands	29	2.5%
8	Canada	27	2.3%
9	Korea, Republic of	11	0.9%
10	Norway	10	0.9%
11	Australia	9	0.8%
12	Cyprus	6	0.5%
13	Argentina	5	0.4%
14	Ukraine	4	0.3%
15	Singapore	3	0.3%
16	South Africa	2	0.2%
17	Malaysia	2	0.2%
18	India	2	0.2%
19	Iran, Islamic Republic of	2	0.2%
20	Bangladesh	2	0.2%
21	Bulgaria	2	0.2%
22	Hong Kong	1	0.1%
23	Taiwan	1	0.1%
24	Russia	1	0.1%