Rank	Countries/Territories	Count	Percent
1	United States	443	42.6%
2	China	319	30.7%
3	Germany	137	13.2%
4	France	18	1.7%
5	Japan	12	1.2%
6	Netherlands	12	1.2%
7	Switzerland	12	1.2%
8	Canada	8	0.8%
9	Cyprus	7	0.7%
10		7	0.7%
11	Russia	7	0.7%
12	Thailand	7	0.7%
13	Turkey	7	0.7%
14	India	5	0.5%
15	Egypt	4	0.4%
16	United Kingdom	4	0.4%
17	Mexico	4	0.4%
18	Singapore	3	0.3%
19	Hong Kong	3	0.3%
20	Indonesia	2	0.2%
21	Iran, Islamic Republic of	2	0.2%
22	Australia	2	0.2%
23	Taiwan	2	0.2%
24	Poland	2	0.2%
25	Viet Nam	2	0.2%
26	Ukraine	1	0.1%
27	Norway	1	0.1%
28	Sweden	1	0.1%
29	Bangladesh	1	0.1%
30	Argentina	1	0.1%
31	Ireland	1	0.1%
32	Italy	1	0.1%
33	Lithuania	1	0.1%
34	Malaysia	1	0.1%