Rank	Countries/Territories	Count	Percent
1	United States	543	45%
2	China	432	35.8%
3	Germany	91	7.5%
4	France	44	3.6%
5	Netherlands	13	1.1%
6	Japan	11	0.9%
7	Singapore	7	0.6%
8	Mongolia	6	0.5%
9	Ukraine	6	0.5%
10	India	6	0.5%
11	Cyprus	6	0.5%
12	Canada	5	0.4%
13	Ireland	5	0.4%
14	Hong Kong	4	0.3%
15	United Kingdom	4	0.3%
16	Sweden	4	0.3%
17	Malaysia	2	0.2%
18	Norway	2	0.2%
19	Philippines	2	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Argentina	2	0.2%
22	Belgium	2	0.2%
23	Georgia	2	0.2%
24	Finland	1	0.1%
25	Algeria	1	0.1%
26	Italy	1	0.1%
27	Latvia	1	0.1%
28	Russia	1	0.1%
29	Switzerland	1	0.1%