Rank	Countries/Territories	Count	Percent
1	United States	348	46.1%
2	China	199	26.4%
3	Germany	101	13.4%
4	Japan	27	3.6%
5	France	24	3.2%
6	Singapore	10	1.3%
7	Taiwan	6	0.8%
8	Australia	6	0.8%
9	Netherlands	6	0.8%
10	India	3	0.4%
11	Canada	3	0.4%
12	Cyprus	3	0.4%
13	Argentina	3	0.4%
14	Iran, Islamic Republic of	2	0.3%
15	Romania	2	0.3%
16	Korea, Republic of	2	0.3%
17	Latvia	2	0.3%
18	Ireland	2	0.3%
19	Ukraine	1	0.1%
20	United Kingdom	1	0.1%
21	Malaysia	1	0.1%
22	Russia	1	0.1%
23	Iraq	1	0.1%
24	Hong Kong	1	0.1%