Rank	Countries/Territories	Count	Percent
1	United States	324	35.1%
2	China	304	32.9%
3	Germany	77	8.3%
4	Japan	29	3.1%
5	France	25	2.7%
6	Canada	23	2.5%
7	India	21	2.3%
8	Netherlands	18	2%
9	Argentina	15	1.6%
10	Philippines	10	1.1%
11	Singapore	9	1%
12	Cyprus	8	0.9%
13	Italy	7	0.8%
14	Ireland	6	0.7%
15	United Kingdom	6	0.7%
16	Iraq	4	0.4%
17	Indonesia	4	0.4%
18	Iran, Islamic Republic of	3	0.3%
19	Egypt	3	0.3%
20	Mongolia	3	0.3%
21	Taiwan	3	0.3%
22	Turkey	3	0.3%
23	Poland	2	0.2%
24	Australia	2	0.2%
25	Brazil	2	0.2%
26	Czech Republic	2	0.2%
27	Ecuador	2	0.2%
28	Romania	1	0.1%
29	Saudi Arabia	1	0.1%
30	Nigeria	1	0.1%
31	Norway	1	0.1%
32	Pakistan	1	0.1%
33	Uganda	1	0.1%
34	Ukraine	1	0.1%
35	Malaysia	1	0.1%