Rank	Countries/Territories	Count	Percent
1	United States	495	38.4%
2	China	447	34.7%
3	Germany	139	10.8%
4	France	54	4.2%
5	Canada	24	1.9%
6	Japan	23	1.8%
7	Korea, Republic of	15	1.2%
8	Russia	14	1.1%
9	Netherlands	11	0.9%
10	Singapore	9	0.7%
11	Hong Kong	9	0.7%
12	Australia	9	0.7%
13	Cyprus	8	0.6%
14	Ukraine	7	0.5%
15	Taiwan	3	0.2%
16	Malaysia	3	0.2%
17	Italy	3	0.2%
18	Morocco	2	0.2%
19	Mexico	2	0.2%
20	India	2	0.2%
21	Iran, Islamic Republic of	2	0.2%
22	Latvia	2	0.2%
23	Brazil	2	0.2%
24	Greece	2	0.2%
25	Mongolia	1	0.1%
26	Norway	1	0.1%
27	Serbia	1	0.1%