Rank	Countries/Territories	Count	Percent
1	United States	469	34%
2	China	467	33.9%
3	Germany	143	10.4%
4	Canada	44	3.2%
5	France	36	2.6%
6		31	2.2%
7	Japan	20	1.5%
8	Netherlands	15	1.1%
9	Singapore	13	0.9%
10	United Kingdom	13	0.9%
11	Iran, Islamic Republic of	12	0.9%
12	Norway	9	0.7%
13	Ireland	8	0.6%
14	Chile	8	0.6%
15	India	8	0.6%
16	Cyprus	7	0.5%
17	Argentina	6	0.4%
18	Korea, Republic of	6	0.4%
19	South Africa	6	0.4%
20	Taiwan	6	0.4%
21	Latvia	5	0.4%
22	Jamaica	5	0.4%
23	Australia	5	0.4%
24	Hong Kong	4	0.3%
25	Russia	4	0.3%
26	Egypt	3	0.2%
27	Brazil	3	0.2%
28	Bangladesh	2	0.1%
29	Colombia	2	0.1%
30	Croatia	2	0.1%
31	Serbia	2	0.1%
32	Poland	2	0.1%
33	Mongolia	2	0.1%
34	Morocco	2	0.1%
35	Turkey	2	0.1%
36	Ukraine	1	0.1%
37	Malaysia	1	0.1%
38	Puerto Rico	1	0.1%
39	Peru	1	0.1%
40	Switzerland	1	0.1%
41	Belgium	1	0.1%
42	Cambodia	1	0.1%