Rank	Countries/Territories	Count	Percent
1	United States	450	34.4%
2	China	389	29.7%
3	Germany	126	9.6%
4		53	4%
5	Australia	46	3.5%
6	Japan	27	2.1%
7	France	23	1.8%
8	India	21	1.6%
9	Iran, Islamic Republic of	19	1.5%
10	Spain	18	1.4%
11	United Kingdom	11	0.8%
12	Colombia	10	0.8%
13	Korea, Republic of	9	0.7%
14	Netherlands	9	0.7%
15	Singapore	9	0.7%
16	Ireland	8	0.6%
17	Canada	8	0.6%
18	Taiwan	8	0.6%
19	Denmark	7	0.5%
20	Norway	6	0.5%
21	Brazil	5	0.4%
22	Chile	4	0.3%
23	Cyprus	4	0.3%
24	Turkey	4	0.3%
25	Hong Kong	3	0.2%
26	Romania	3	0.2%
27	Saudi Arabia	3	0.2%
28	Mongolia	2	0.2%
29	Slovenia	2	0.2%
30	Russia	2	0.2%
31	New Zealand	2	0.2%
32	Malaysia	2	0.2%
33	Hungary	2	0.2%
34	Egypt	2	0.2%
35	Bangladesh	2	0.2%
36	Belgium	2	0.2%
37	Argentina	2	0.2%
38	Finland	1	0.1%
39	Indonesia	1	0.1%
40	Mexico	1	0.1%
41	Lithuania	1	0.1%
42	Pakistan	1	0.1%
43	Ukraine	1	0.1%