Rank	Countries/Territories	Count	Percent
1	United States	526	33.7%
2	China	451	28.9%
3	Germany	158	10.1%
4	France	77	4.9%
5	Australia	65	4.2%
6	Japan	45	2.9%
7	Latvia	40	2.6%
8	Norway	27	1.7%
9	Romania	18	1.2%
10	Russia	16	1%
11	Netherlands	15	1%
12	Singapore	13	0.8%
13	United Kingdom	12	0.8%
14	India	10	0.6%
15	Cyprus	10	0.6%
16	Ireland	8	0.5%
17	Sweden	8	0.5%
18	Turkey	7	0.4%
19	Ukraine	6	0.4%
20	Argentina	6	0.4%
21	Israel	5	0.3%
22	Korea, Republic of	5	0.3%
23	Iran, Islamic Republic of	4	0.3%
24	Bangladesh	4	0.3%
25	Pakistan	4	0.3%
26	Canada	3	0.2%
27		3	0.2%
28	Hong Kong	3	0.2%
29	Czech Republic	2	0.1%
30	Saudi Arabia	2	0.1%
31	Malaysia	2	0.1%
32	Mongolia	1	0.1%
33	Philippines	1	0.1%
34	Switzerland	1	0.1%
35	Taiwan	1	0.1%
36	South Africa	1	0.1%
37	Finland	1	0.1%