Rank	Countries/Territories	Count	Percent
1	United States	562	34.4%
2	China	538	32.9%
3	Germany	260	15.9%
4	France	58	3.5%
5	Canada	40	2.4%
6	Netherlands	16	1%
7	Singapore	14	0.9%
8	Japan	13	0.8%
9	Greece	13	0.8%
10	Norway	11	0.7%
11	Ukraine	9	0.6%
12	Egypt	8	0.5%
13	Korea, Republic of	7	0.4%
14	United Kingdom	6	0.4%
15	Iran, Islamic Republic of	6	0.4%
16	Ireland	6	0.4%
17	Brazil	6	0.4%
18	Viet Nam	6	0.4%
19	Australia	5	0.3%
20	Sweden	5	0.3%
21	Switzerland	5	0.3%
22	Cyprus	4	0.2%
23	Italy	4	0.2%
24	Hong Kong	3	0.2%
25	Hungary	3	0.2%
26	Belgium	3	0.2%
27	South Africa	3	0.2%
28	Malaysia	2	0.1%
29	Thailand	2	0.1%
30	Jordan	2	0.1%
31	Pakistan	2	0.1%
32	Poland	2	0.1%
33	Romania	2	0.1%
34	Russia	2	0.1%
35	Bangladesh	2	0.1%
36	Argentina	1	0.1%
37	Bulgaria	1	0.1%
38	India	1	0.1%
39	Latvia	1	0.1%
40	Luxembourg	1	0.1%
41	Spain	1	0.1%