Rank	Countries/Territories	Count	Percent
1	United States	672	42.4%
2	China	363	22.9%
3	Germany	146	9.2%
4	Canada	58	3.7%
5	India	46	2.9%
6	Japan	28	1.8%
7	Netherlands	28	1.8%
8	France	23	1.5%
9	Cyprus	20	1.3%
10	Turkey	20	1.3%
11	Romania	15	0.9%
12	Korea, Republic of	14	0.9%
13	United Kingdom	14	0.9%
14	Switzerland	11	0.7%
15	Russia	10	0.6%
16	Pakistan	9	0.6%
17	Ukraine	9	0.6%
18	Singapore	8	0.5%
19	Sweden	8	0.5%
20	Philippines	8	0.5%
21	Iran, Islamic Republic of	7	0.4%
22	Ireland	7	0.4%
23	Australia	6	0.4%
24	Spain	6	0.4%
25	Poland	5	0.3%
26	Serbia	4	0.3%
27	Bangladesh	4	0.3%
28	Brazil	3	0.2%
29	Austria	3	0.2%
30	Italy	3	0.2%
31	Hong Kong	3	0.2%
32	Ethiopia	2	0.1%
33	Denmark	2	0.1%
34	Peru	2	0.1%
35	Norway	2	0.1%
36	Malaysia	2	0.1%
37	Slovakia	2	0.1%
38	Uzbekistan	1	0.1%
39	Viet Nam	1	0.1%
40	Mexico	1	0.1%
41	Mongolia	1	0.1%
42	New Zealand	1	0.1%
43	Nigeria	1	0.1%
44	Latvia	1	0.1%
45	Lithuania	1	0.1%
46	Jordan	1	0.1%
47	Equatorial Guinea	1	0.1%
48	Hungary	1	0.1%