Rank	Countries/Territories	Count	Percent
1	United States	271	37.6%
2	China	220	30.5%
3	Germany	80	11.1%
4	Japan	23	3.2%
5	Canada	15	2.1%
6	Ukraine	14	1.9%
7	Singapore	13	1.8%
8	United Kingdom	10	1.4%
9	Russia	7	1%
10		7	1%
11	Australia	6	0.8%
12	Netherlands	6	0.8%
13	France	5	0.7%
14	Cyprus	5	0.7%
15	Indonesia	4	0.6%
16	Iran, Islamic Republic of	4	0.6%
17	Norway	4	0.6%
18	Taiwan	4	0.6%
19	Romania	3	0.4%
20	Poland	2	0.3%
21	Mauritius	2	0.3%
22	Mongolia	2	0.3%
23	Denmark	2	0.3%
24	Egypt	1	0.1%
25	Belgium	1	0.1%
26	Malaysia	1	0.1%
27	Italy	1	0.1%
28	Hong Kong	1	0.1%
29	India	1	0.1%
30	Sweden	1	0.1%
31	Switzerland	1	0.1%
32	Pakistan	1	0.1%
33	Philippines	1	0.1%
34	Turkey	1	0.1%
35	United Arab Emirates	1	0.1%