Rank	Countries/Territories	Count	Percent
1	United States	250	42.4%
2	China	179	30.4%
3	Germany	71	12.1%
4	Korea, Republic of	19	3.2%
5	Canada	14	2.4%
6	Japan	12	2%
7	Singapore	8	1.4%
8	India	5	0.8%
9	Cyprus	5	0.8%
10	Netherlands	4	0.7%
11	Australia	3	0.5%
12	Austria	2	0.3%
13	Bosnia and Herzegovina	2	0.3%
14	Argentina	2	0.3%
15	France	2	0.3%
16	Hong Kong	2	0.3%
17	Russia	2	0.3%
18	Iran, Islamic Republic of	2	0.3%
19	Ireland	2	0.3%
20	Malaysia	2	0.3%
21	Portugal	1	0.2%