Rank	Countries/Territories	Count	Percent
1	United States	526	39.3%
2	China	469	35.1%
3	Germany	173	12.9%
4	France	24	1.8%
5		22	1.6%
6	Netherlands	18	1.3%
7	Switzerland	15	1.1%
8	Canada	13	1%
9	Japan	11	0.8%
10	Norway	10	0.7%
11	Cyprus	8	0.6%
12	India	5	0.4%
13	Singapore	5	0.4%
14	Ukraine	5	0.4%
15	United Kingdom	5	0.4%
16	Australia	4	0.3%
17	Denmark	3	0.2%
18	Latvia	3	0.2%
19	New Zealand	3	0.2%
20	Mongolia	3	0.2%
21	Turkey	2	0.1%
22	Malaysia	2	0.1%
23	Iran, Islamic Republic of	2	0.1%
24	Hong Kong	2	0.1%
25	Ireland	1	0.1%
26	Bangladesh	1	0.1%
27	Argentina	1	0.1%
28	Russia	1	0.1%