Rank	Countries/Territories	Count	Percent
1	United States	442	43.5%
2	China	340	33.5%
3	Germany	107	10.5%
4	France	24	2.4%
5	Canada	23	2.3%
6	Japan	14	1.4%
7	Singapore	12	1.2%
8	Russia	9	0.9%
9	Netherlands	8	0.8%
10	India	5	0.5%
11	United Kingdom	4	0.4%
12	Ukraine	3	0.3%
13	Belgium	3	0.3%
14	Australia	2	0.2%
15	Hong Kong	2	0.2%
16	Cyprus	2	0.2%
17	Iran, Islamic Republic of	2	0.2%
18	Korea, Republic of	2	0.2%
19	Mauritius	2	0.2%
20	Mongolia	2	0.2%
21	Spain	2	0.2%
22	Sweden	1	0.1%
23	Taiwan	1	0.1%
24	Lithuania	1	0.1%
25	Ireland	1	0.1%
26	Dominica	1	0.1%
27	Bangladesh	1	0.1%