Rank	Countries/Territories	Count	Percent
1	United States	312	37.8%
2	China	237	28.7%
3	Germany	86	10.4%
4	Japan	35	4.2%
5	Russia	16	1.9%
6	Mexico	15	1.8%
7	United Kingdom	13	1.6%
8	Singapore	11	1.3%
9	Brazil	11	1.3%
10	Cyprus	8	1%
11	Netherlands	8	1%
12	Chile	7	0.8%
13	France	5	0.6%
14	Australia	5	0.6%
15	Nigeria	5	0.6%
16	Romania	4	0.5%
17	Ukraine	4	0.5%
18	Hong Kong	4	0.5%
19	Iran, Islamic Republic of	4	0.5%
20	Bangladesh	3	0.4%
21	Viet Nam	3	0.4%
22	Taiwan	2	0.2%
23	Turkey	2	0.2%
24	Mongolia	2	0.2%
25	Nepal	2	0.2%
26	Korea, Republic of	2	0.2%
27	Mauritius	2	0.2%
28	Belgium	2	0.2%
29	Ecuador	2	0.2%
30	Argentina	2	0.2%
31	Canada	2	0.2%
32	Ireland	2	0.2%
33	Italy	1	0.1%
34	Iraq	1	0.1%
35	Bulgaria	1	0.1%
36	Peru	1	0.1%
37	Poland	1	0.1%
38	New Zealand	1	0.1%
39	Switzerland	1	0.1%