Rank	Countries/Territories	Count	Percent
1	United States	520	36.2%
2	China	513	35.7%
3	Germany	123	8.6%
4	Japan	49	3.4%
5	France	39	2.7%
6	Canada	28	1.9%
7	Netherlands	25	1.7%
8	Egypt	16	1.1%
9	India	11	0.8%
10	Mexico	11	0.8%
11	Korea, Republic of	10	0.7%
12	Bangladesh	8	0.6%
13	Australia	7	0.5%
14	Singapore	7	0.5%
15	Russia	6	0.4%
16	Pakistan	6	0.4%
17	Ireland	6	0.4%
18	United Kingdom	6	0.4%
19	Brazil	5	0.3%
20	Bulgaria	5	0.3%
21	Indonesia	5	0.3%
22	Iran, Islamic Republic of	4	0.3%
23	Cyprus	4	0.3%
24	South Africa	3	0.2%
25	Taiwan	2	0.1%
26	Serbia	2	0.1%
27	Ukraine	2	0.1%
28	Luxembourg	2	0.1%
29	Nigeria	2	0.1%
30	Poland	2	0.1%
31	Philippines	1	0.1%
32	Thailand	1	0.1%
33	Spain	1	0.1%
34	Saudi Arabia	1	0.1%
35	Argentina	1	0.1%
36	Bahrain	1	0.1%
37	Latvia	1	0.1%
38	Hungary	1	0.1%
39	Viet Nam	1	0.1%