Rank	Countries/Territories	Count	Percent
1	United States	377	44.1%
2	China	243	28.5%
3	Germany	75	8.8%
4	Canada	30	3.5%
5	Japan	19	2.2%
6	Ukraine	13	1.5%
7	Singapore	12	1.4%
8	Norway	12	1.4%
9	France	12	1.4%
10	Netherlands	11	1.3%
11	Cyprus	9	1.1%
12	Russia	8	0.9%
13	Switzerland	7	0.8%
14	Korea, Republic of	6	0.7%
15	Thailand	5	0.6%
16	Argentina	4	0.5%
17	Australia	4	0.5%
18	Malaysia	2	0.2%
19	Mongolia	2	0.2%
20	Poland	2	0.2%
21	Italy	1	0.1%