Rank	Countries/Territories	Count	Percent
1	United States	504	36.3%
2	China	492	35.4%
3	Germany	156	11.2%
4	France	43	3.1%
5	Japan	23	1.7%
6	Norway	21	1.5%
7	Ukraine	19	1.4%
8	Canada	17	1.2%
9		17	1.2%
10	Cyprus	15	1.1%
11	Australia	11	0.8%
12	Russia	9	0.6%
13	Singapore	8	0.6%
14	Netherlands	7	0.5%
15	India	6	0.4%
16	Ireland	4	0.3%
17	United Kingdom	4	0.3%
18	Spain	4	0.3%
19	Mongolia	4	0.3%
20	Korea, Republic of	3	0.2%
21	Argentina	3	0.2%
22	Cambodia	2	0.1%
23	Latvia	2	0.1%
24	Malaysia	2	0.1%
25	Greece	2	0.1%
26	Hong Kong	2	0.1%
27	Sweden	2	0.1%
28	Switzerland	2	0.1%
29	Turkey	2	0.1%
30	Philippines	1	0.1%
31	Bangladesh	1	0.1%