Rank	Countries/Territories	Count	Percent
1	United States	131	35.4%
2	China	129	34.9%
3	Germany	38	10.3%
4	Japan	12	3.2%
5	Korea, Republic of	11	3%
6	Taiwan	7	1.9%
7	Canada	7	1.9%
8	Cyprus	6	1.6%
9	Ireland	6	1.6%
10	Netherlands	4	1.1%
11	Russia	3	0.8%
12	Ukraine	2	0.5%
13	France	2	0.5%
14	Argentina	2	0.5%
15	Iran, Islamic Republic of	2	0.5%
16	Hong Kong	2	0.5%
17	India	1	0.3%
18	Australia	1	0.3%
19	Singapore	1	0.3%
20	Spain	1	0.3%
21	Norway	1	0.3%
22	Mongolia	1	0.3%