Rank	Countries/Territories	Count	Percent
1	United States	619	42.2%
2	China	420	28.6%
3	Germany	159	10.8%
4	France	48	3.3%
5	Japan	46	3.1%
6	Argentina	37	2.5%
7	Canada	27	1.8%
8	Australia	18	1.2%
9	Netherlands	15	1%
10	Singapore	13	0.9%
11	Romania	8	0.5%
12	Norway	7	0.5%
13	Russia	6	0.4%
14	Cyprus	6	0.4%
15	Ecuador	6	0.4%
16	Ireland	5	0.3%
17	Latvia	4	0.3%
18	India	3	0.2%
19	Bangladesh	3	0.2%
20	Bulgaria	3	0.2%
21	United Kingdom	3	0.2%
22	Korea, Republic of	2	0.1%
23	Malaysia	2	0.1%
24	Mauritius	2	0.1%
25	Mongolia	1	0.1%
26	Iran, Islamic Republic of	1	0.1%
27	Hong Kong	1	0.1%
28	Ukraine	1	0.1%