Rank	Countries/Territories	Count	Percent
1	United States	227	31.8%
2	China	224	31.4%
3	Iran, Islamic Republic of	26	3.6%
4	Singapore	24	3.4%
5	United Kingdom	23	3.2%
6	Germany	20	2.8%
7	Australia	17	2.4%
8	Switzerland	16	2.2%
9	Korea, Republic of	14	2%
10	Japan	13	1.8%
11	India	13	1.8%
12	France	12	1.7%
13	Canada	10	1.4%
14	Malaysia	9	1.3%
15	Norway	9	1.3%
16	Ireland	7	1%
17	Cyprus	6	0.8%
18	Spain	5	0.7%
19	Egypt	4	0.6%
20	Denmark	3	0.4%
21	Belgium	3	0.4%
22	Netherlands	3	0.4%
23	Philippines	3	0.4%
24	Poland	2	0.3%
25	Portugal	2	0.3%
26	South Africa	2	0.3%
27	Viet Nam	2	0.3%
28	Cambodia	2	0.3%
29	Colombia	2	0.3%
30	Croatia	1	0.1%
31	Ecuador	1	0.1%
32	Italy	1	0.1%
33	Virgin Islands, British	1	0.1%
34	Thailand	1	0.1%
35	Ukraine	1	0.1%
36	Pakistan	1	0.1%
37	Peru	1	0.1%
38	Romania	1	0.1%
39	Russia	1	0.1%