Rank	Countries/Territories	Count	Percent
1	United States	494	33.1%
2	China	485	32.5%
3	Germany	139	9.3%
4		53	3.5%
5	Australia	47	3.1%
6	Japan	29	1.9%
7	France	25	1.7%
8	Iran, Islamic Republic of	23	1.5%
9	India	21	1.4%
10	Spain	19	1.3%
11	United Kingdom	16	1.1%
12	Singapore	13	0.9%
13	Netherlands	10	0.7%
14	Colombia	10	0.7%
15	Canada	10	0.7%
16	Korea, Republic of	9	0.6%
17	Taiwan	9	0.6%
18	Ireland	8	0.5%
19	Denmark	7	0.5%
20	Norway	6	0.4%
21	New Zealand	5	0.3%
22	Brazil	5	0.3%
23	Cyprus	5	0.3%
24	Chile	4	0.3%
25	Mongolia	4	0.3%
26	Turkey	4	0.3%
27	Saudi Arabia	3	0.2%
28	Romania	3	0.2%
29	Hong Kong	3	0.2%
30	Hungary	2	0.1%
31	Egypt	2	0.1%
32	Bangladesh	2	0.1%
33	Belgium	2	0.1%
34	Argentina	2	0.1%
35	Russia	2	0.1%
36	Slovenia	2	0.1%
37	Malaysia	2	0.1%
38	Ukraine	2	0.1%
39	Mexico	1	0.1%
40	Namibia	1	0.1%
41	Lithuania	1	0.1%
42	Pakistan	1	0.1%
43	Peru	1	0.1%
44	Finland	1	0.1%
45	Indonesia	1	0.1%