Rank	Countries/Territories	Count	Percent
1	United States	567	46.7%
2	China	279	23%
3	Germany	118	9.7%
4	Japan	63	5.2%
5	France	26	2.1%
6	Singapore	22	1.8%
7	Russia	16	1.3%
8	Canada	14	1.2%
9	Hong Kong	10	0.8%
10	Argentina	9	0.7%
11	Australia	7	0.6%
12	Iran, Islamic Republic of	7	0.6%
13	United Kingdom	7	0.6%
14	Netherlands	7	0.6%
15	Cyprus	6	0.5%
16	Ireland	5	0.4%
17	Viet Nam	5	0.4%
18	Nigeria	4	0.3%
19	Mauritius	4	0.3%
20	Ukraine	4	0.3%
21	Panama	4	0.3%
22	Latvia	3	0.2%
23	Norway	3	0.2%
24	Jordan	3	0.2%
25	Chile	3	0.2%
26	Colombia	2	0.2%
27	Bangladesh	2	0.2%
28	Indonesia	2	0.2%
29	Mongolia	2	0.2%
30	Portugal	2	0.2%
31	Switzerland	1	0.1%
32	United Arab Emirates	1	0.1%
33	Mexico	1	0.1%
34	Pakistan	1	0.1%
35	Korea, Republic of	1	0.1%
36	Brazil	1	0.1%
37	Bulgaria	1	0.1%