Rank	Countries/Territories	Count	Percent
1	United States	252	37.6%
2	China	235	35.1%
3	Germany	67	10%
4	Japan	16	2.4%
5	Singapore	15	2.2%
6	United Kingdom	10	1.5%
7	Switzerland	10	1.5%
8	Spain	7	1%
9	Netherlands	7	1%
10	Pakistan	7	1%
11	India	7	1%
12	Hong Kong	6	0.9%
13	Russia	5	0.7%
14	Ireland	4	0.6%
15	France	4	0.6%
16	Cyprus	3	0.4%
17	Ukraine	3	0.4%
18	Canada	2	0.3%
19	Australia	2	0.3%
20	Malaysia	2	0.3%
21	Indonesia	2	0.3%
22	Korea, Republic of	1	0.1%
23	Austria	1	0.1%
24	Brazil	1	0.1%
25	Bulgaria	1	0.1%