Rank	Countries/Territories	Count	Percent
1	United States	531	39.8%
2	China	474	35.6%
3	Germany	88	6.6%
4	Argentina	36	2.7%
5	France	32	2.4%
6	United Kingdom	21	1.6%
7	Canada	19	1.4%
8	Japan	18	1.4%
9	Taiwan	17	1.3%
10	India	14	1.1%
11	Singapore	12	0.9%
12	Netherlands	11	0.8%
13	Iran, Islamic Republic of	11	0.8%
14	Australia	10	0.8%
15	Cyprus	8	0.6%
16	Russia	8	0.6%
17	Norway	2	0.2%
18	Ukraine	2	0.2%
19	Czech Republic	2	0.2%
20		2	0.2%
21	Cambodia	2	0.2%
22	Mexico	2	0.2%
23	Mongolia	2	0.2%
24	Greece	1	0.1%
25	Hong Kong	1	0.1%
26	Belgium	1	0.1%
27	Brazil	1	0.1%
28	Bulgaria	1	0.1%
29	Spain	1	0.1%
30	Switzerland	1	0.1%
31	Poland	1	0.1%
32	New Zealand	1	0.1%