Rank	Countries/Territories	Count	Percent
1	United States	320	45.3%
2	China	195	27.6%
3	Germany	75	10.6%
4	France	31	4.4%
5	Canada	21	3%
6	Netherlands	16	2.3%
7	Japan	12	1.7%
8	Singapore	7	1%
9	Australia	6	0.8%
10	Hong Kong	3	0.4%
11	India	2	0.3%
12	Iran, Islamic Republic of	2	0.3%
13	Philippines	2	0.3%
14	Romania	2	0.3%
15	Mongolia	2	0.3%
16	Ukraine	2	0.3%
17	United Kingdom	1	0.1%
18	Spain	1	0.1%
19	Switzerland	1	0.1%
20	Georgia	1	0.1%
21	Malaysia	1	0.1%
22	Norway	1	0.1%
23	Indonesia	1	0.1%
24	Argentina	1	0.1%
25	Cyprus	1	0.1%