Rank	Countries/Territories	Count	Percent
1	United States	335	39.5%
2	China	231	27.2%
3	Germany	66	7.8%
4	Japan	44	5.2%
5	Australia	25	2.9%
6	Singapore	22	2.6%
7	Iran, Islamic Republic of	19	2.2%
8	France	12	1.4%
9	Saudi Arabia	12	1.4%
10	Canada	10	1.2%
11	United Arab Emirates	9	1.1%
12	Netherlands	8	0.9%
13	Lebanon	7	0.8%
14	Mongolia	5	0.6%
15	Egypt	5	0.6%
16	Cyprus	4	0.5%
17	Mauritius	4	0.5%
18	Korea, Republic of	3	0.4%
19	United Kingdom	3	0.4%
20	Italy	3	0.4%
21	Hong Kong	2	0.2%
22	Bangladesh	2	0.2%
23	Russia	2	0.2%
24	Oman	2	0.2%
25	Pakistan	1	0.1%
26	Palestine, State of	1	0.1%
27	Peru	1	0.1%
28	Kuwait	1	0.1%
29	Switzerland	1	0.1%
30	Ukraine	1	0.1%
31	Zambia	1	0.1%
32	Bulgaria	1	0.1%
33	Argentina	1	0.1%
34	Dominican Republic	1	0.1%
35	Ecuador	1	0.1%
36	Ireland	1	0.1%
37	Greece	1	0.1%