Rank	Countries/Territories	Count	Percent
1	United States	661	38.1%
2	China	574	33.1%
3	Germany	177	10.2%
4	France	58	3.3%
5	Canada	25	1.4%
6	Japan	24	1.4%
7	Ukraine	23	1.3%
8	Australia	22	1.3%
9	Cyprus	18	1%
10	Switzerland	15	0.9%
11	Singapore	14	0.8%
12	Netherlands	13	0.7%
13	India	12	0.7%
14	Morocco	11	0.6%
15	Taiwan	9	0.5%
16	Malaysia	7	0.4%
17	Mexico	7	0.4%
18	Pakistan	6	0.3%
19	Peru	6	0.3%
20	Argentina	6	0.3%
21	Hong Kong	5	0.3%
22	United Kingdom	5	0.3%
23	Bangladesh	4	0.2%
24	Latvia	4	0.2%
25	Saudi Arabia	4	0.2%
26	Thailand	3	0.2%
27	Mongolia	3	0.2%
28	Korea, Republic of	3	0.2%
29	Nicaragua	2	0.1%
30	Italy	2	0.1%
31	Egypt	2	0.1%
32	Viet Nam	2	0.1%
33	Bosnia and Herzegovina	1	0.1%
34	Indonesia	1	0.1%
35	Iran, Islamic Republic of	1	0.1%
36	Lithuania	1	0.1%
37	Jordan	1	0.1%
38	Sweden	1	0.1%
39	Poland	1	0.1%
40	Russia	1	0.1%