Rank	Countries/Territories	Count	Percent
1	United States	485	36.2%
2	China	318	23.7%
3	Germany	165	12.3%
4	Japan	52	3.9%
5	Russia	43	3.2%
6	Netherlands	34	2.5%
7	Singapore	32	2.4%
8	India	30	2.2%
9	France	26	1.9%
10	Canada	22	1.6%
11	Iran, Islamic Republic of	19	1.4%
12	Australia	16	1.2%
13	Italy	11	0.8%
14	Korea, Republic of	10	0.7%
15	Argentina	9	0.7%
16	Thailand	8	0.6%
17	Cyprus	5	0.4%
18	Mexico	4	0.3%
19	Saudi Arabia	4	0.3%
20	Portugal	4	0.3%
21	Romania	4	0.3%
22	Ukraine	4	0.3%
23	United Kingdom	3	0.2%
24	Sweden	3	0.2%
25	Latvia	3	0.2%
26	Bangladesh	3	0.2%
27	Ireland	3	0.2%
28	Israel	2	0.1%
29	Greece	2	0.1%
30	Hong Kong	2	0.1%
31	Brazil	2	0.1%
32	Macao	2	0.1%
33	Mongolia	2	0.1%
34	Norway	2	0.1%
35	Spain	1	0.1%
36	Jordan	1	0.1%
37	Bulgaria	1	0.1%
38	Dominican Republic	1	0.1%
39	Hungary	1	0.1%
40	Trinidad and Tobago	1	0.1%