Rank	Countries/Territories	Count	Percent
1	United States	613	39.9%
2	China	503	32.8%
3	Germany	129	8.4%
4	Russia	43	2.8%
5	Australia	31	2%
6	France	25	1.6%
7	Pakistan	20	1.3%
8	Netherlands	17	1.1%
9	Japan	17	1.1%
10	Canada	16	1%
11	Cyprus	10	0.7%
12	Malaysia	10	0.7%
13	United Kingdom	10	0.7%
14	Singapore	9	0.6%
15	Argentina	6	0.4%
16	Finland	6	0.4%
17	India	6	0.4%
18	Ireland	6	0.4%
19	Austria	5	0.3%
20	Sweden	5	0.3%
21	Iceland	4	0.3%
22	Korea, Republic of	4	0.3%
23	Mongolia	3	0.2%
24	Norway	3	0.2%
25	Portugal	3	0.2%
26	Ukraine	3	0.2%
27	Switzerland	3	0.2%
28	Denmark	3	0.2%
29	Italy	2	0.1%
30	Hong Kong	2	0.1%
31	Azerbaijan	2	0.1%
32	Bangladesh	2	0.1%
33	Belarus	2	0.1%
34	Brazil	2	0.1%
35	Czech Republic	2	0.1%
36	Taiwan	2	0.1%
37	Poland	2	0.1%
38	Thailand	1	0.1%
39	Palestine, State of	1	0.1%
40	Bosnia and Herzegovina	1	0.1%
41	Uzbekistan	1	0.1%