Rank	Countries/Territories	Count	Percent
1	United States	347	39.5%
2	China	283	32.2%
3	Germany	82	9.3%
4	Japan	29	3.3%
5	Canada	15	1.7%
6	Ukraine	14	1.6%
7	Singapore	13	1.5%
8	United Kingdom	10	1.1%
9	Netherlands	8	0.9%
10	Australia	8	0.9%
11		7	0.8%
12	Russia	7	0.8%
13	France	6	0.7%
14	Cyprus	6	0.7%
15	Indonesia	4	0.5%
16	Iran, Islamic Republic of	4	0.5%
17	Mongolia	4	0.5%
18	Norway	4	0.5%
19	Taiwan	4	0.5%
20	Romania	3	0.3%
21	Turkey	2	0.2%
22	Poland	2	0.2%
23	Mauritius	2	0.2%
24	Denmark	2	0.2%
25	Egypt	1	0.1%
26	Belgium	1	0.1%
27	Ireland	1	0.1%
28	Italy	1	0.1%
29	Malaysia	1	0.1%
30	Hong Kong	1	0.1%
31	India	1	0.1%
32	Pakistan	1	0.1%
33	Philippines	1	0.1%
34	United Arab Emirates	1	0.1%
35	Sweden	1	0.1%
36	Switzerland	1	0.1%