Rank	Countries/Territories	Count	Percent
1	United States	444	37.2%
2	China	389	32.6%
3	Germany	114	9.5%
4	Japan	51	4.3%
5	Singapore	30	2.5%
6	Canada	22	1.8%
7	France	19	1.6%
8	Cyprus	15	1.3%
9	Netherlands	15	1.3%
10	Turkey	12	1%
11	India	9	0.8%
12	Korea, Republic of	8	0.7%
13	Egypt	8	0.7%
14	United Kingdom	8	0.7%
15	Australia	7	0.6%
16	Taiwan	6	0.5%
17	Russia	5	0.4%
18	Switzerland	4	0.3%
19	Ukraine	3	0.3%
20	Iran, Islamic Republic of	3	0.3%
21	Hong Kong	2	0.2%
22	Latvia	2	0.2%
23	Lithuania	2	0.2%
24	Brazil	2	0.2%
25	Argentina	2	0.2%
26	Czech Republic	2	0.2%
27	Viet Nam	2	0.2%
28	Mongolia	2	0.2%
29	Romania	2	0.2%
30	Norway	1	0.1%
31	Palestine, State of	1	0.1%
32	Mexico	1	0.1%
33	Ireland	1	0.1%