Rank	Countries/Territories	Count	Percent
1	United States	572	43.6%
2	China	320	24.4%
3	Germany	143	10.9%
4	France	68	5.2%
5	Argentina	50	3.8%
6	Canada	18	1.4%
7	Singapore	17	1.3%
8	Japan	14	1.1%
9	Netherlands	12	0.9%
10	Ukraine	10	0.8%
11	India	10	0.8%
12	Australia	9	0.7%
13	United Kingdom	9	0.7%
14	Egypt	7	0.5%
15	Italy	7	0.5%
16	Cyprus	5	0.4%
17	Russia	5	0.4%
18	Norway	4	0.3%
19	Bangladesh	4	0.3%
20	Indonesia	4	0.3%
21	Korea, Republic of	3	0.2%
22	Belgium	3	0.2%
23	Bulgaria	3	0.2%
24	Poland	3	0.2%
25	Spain	3	0.2%
26	Taiwan	2	0.2%
27	Czech Republic	2	0.2%
28	Austria	1	0.1%
29	Malaysia	1	0.1%
30	Greece	1	0.1%
31	Thailand	1	0.1%
32	Switzerland	1	0.1%