Rank	Countries/Territories	Count	Percent
1	United States	237	41.9%
2	China	118	20.8%
3	Germany	54	9.5%
4		17	3%
5	France	16	2.8%
6	India	13	2.3%
7	Russia	13	2.3%
8	Japan	12	2.1%
9	Mongolia	11	1.9%
10	Spain	11	1.9%
11	Brazil	9	1.6%
12	Netherlands	8	1.4%
13	Singapore	6	1.1%
14	Italy	6	1.1%
15	Hong Kong	5	0.9%
16	Egypt	5	0.9%
17	Switzerland	3	0.5%
18	Thailand	2	0.4%
19	Turkey	2	0.4%
20	United Kingdom	2	0.4%
21	Romania	2	0.4%
22	Cyprus	2	0.4%
23	Canada	2	0.4%
24	Australia	2	0.4%
25	Iran, Islamic Republic of	2	0.4%
26	Ireland	2	0.4%
27	Poland	1	0.2%
28	Korea, Republic of	1	0.2%
29	Denmark	1	0.2%
30	Taiwan	1	0.2%