Rank	Countries/Territories	Count	Percent
1	United States	557	36.8%
2	China	466	30.8%
3	Germany	130	8.6%
4	Russia	67	4.4%
5	France	39	2.6%
6	Japan	36	2.4%
7	India	22	1.5%
8	Latvia	18	1.2%
9	Spain	17	1.1%
10	Australia	15	1%
11	Taiwan	14	0.9%
12	Canada	13	0.9%
13	Netherlands	11	0.7%
14	United Kingdom	11	0.7%
15	Korea, Republic of	9	0.6%
16	Senegal	8	0.5%
17	Afghanistan	7	0.5%
18	Argentina	6	0.4%
19	Brazil	6	0.4%
20	Singapore	6	0.4%
21	Israel	6	0.4%
22	Italy	4	0.3%
23	Mongolia	4	0.3%
24	Cyprus	4	0.3%
25	Sweden	4	0.3%
26	Romania	3	0.2%
27	Colombia	3	0.2%
28	Bosnia and Herzegovina	2	0.1%
29	Czech Republic	2	0.1%
30	Egypt	2	0.1%
31	Bangladesh	2	0.1%
32	Ireland	2	0.1%
33	Hong Kong	2	0.1%
34	Turkey	2	0.1%
35	Ukraine	2	0.1%
36	Thailand	1	0.1%
37	Poland	1	0.1%
38	Viet Nam	1	0.1%
39	Iran, Islamic Republic of	1	0.1%
40	Iraq	1	0.1%
41	Lithuania	1	0.1%
42	Slovakia	1	0.1%
43	Belgium	1	0.1%
44	Cambodia	1	0.1%
45	Bahrain	1	0.1%
46	Denmark	1	0.1%