Rank	Countries/Territories	Count	Percent
1	United States	495	39.6%
2	China	409	32.7%
3	Germany	164	13.1%
4	Japan	45	3.6%
5	Singapore	18	1.4%
6	Netherlands	16	1.3%
7	France	13	1%
8	Brazil	8	0.6%
9	Canada	8	0.6%
10	Switzerland	8	0.6%
11	Cyprus	7	0.6%
12	Malaysia	6	0.5%
13	Hong Kong	5	0.4%
14	Iran, Islamic Republic of	5	0.4%
15	United Kingdom	5	0.4%
16	Korea, Republic of	4	0.3%
17	India	3	0.2%
18	Egypt	3	0.2%
19	Australia	3	0.2%
20	Spain	3	0.2%
21	Norway	3	0.2%
22	Russia	3	0.2%
23	Italy	2	0.2%
24	Pakistan	2	0.2%
25	Slovakia	2	0.2%
26	Argentina	2	0.2%
27	Mauritius	2	0.2%
28	Mexico	2	0.2%
29	Ireland	1	0.1%
30	Denmark	1	0.1%
31	Thailand	1	0.1%
32	Viet Nam	1	0.1%