Rank	Countries/Territories	Count	Percent
1	United States	318	42.4%
2	China	237	31.6%
3	Germany	89	11.9%
4	Korea, Republic of	19	2.5%
5	Japan	17	2.3%
6	Canada	14	1.9%
7	India	12	1.6%
8	Singapore	8	1.1%
9	Cyprus	5	0.7%
10	France	4	0.5%
11	Netherlands	4	0.5%
12	Australia	3	0.4%
13	Austria	2	0.3%
14	Bosnia and Herzegovina	2	0.3%
15	Argentina	2	0.3%
16	Hong Kong	2	0.3%
17	Malaysia	2	0.3%
18	Iran, Islamic Republic of	2	0.3%
19	Ireland	2	0.3%
20	United Kingdom	2	0.3%
21	Russia	2	0.3%
22	Portugal	1	0.1%
23	Finland	1	0.1%