Rank	Countries/Territories	Count	Percent
1	United States	583	42.3%
2	China	369	26.8%
3	Germany	150	10.9%
4	Japan	70	5.1%
5	Canada	24	1.7%
6	Iran, Islamic Republic of	19	1.4%
7	Singapore	16	1.2%
8	Cyprus	14	1%
9	Australia	12	0.9%
10	France	11	0.8%
11	United Kingdom	9	0.7%
12	Netherlands	8	0.6%
13	Hong Kong	7	0.5%
14	Latvia	6	0.4%
15	Philippines	6	0.4%
16	Russia	6	0.4%
17	Switzerland	6	0.4%
18	Ireland	5	0.4%
19	Ethiopia	4	0.3%
20	India	4	0.3%
21	Argentina	4	0.3%
22	Taiwan	4	0.3%
23	Viet Nam	4	0.3%
24	Peru	3	0.2%
25	Romania	3	0.2%
26	Mexico	3	0.2%
27	Mongolia	3	0.2%
28	Bangladesh	3	0.2%
29	Egypt	3	0.2%
30	Indonesia	2	0.1%
31	Nepal	2	0.1%
32	New Zealand	2	0.1%
33	Korea, Republic of	2	0.1%
34	Thailand	2	0.1%
35	Sweden	2	0.1%
36	South Africa	1	0.1%
37	Ukraine	1	0.1%
38	Malaysia	1	0.1%
39	Norway	1	0.1%
40	Israel	1	0.1%
41	Croatia	1	0.1%
42	Brazil	1	0.1%