Rank	Countries/Territories	Count	Percent
1	United States	281	42.3%
2	China	186	28%
3	Germany	62	9.3%
4		29	4.4%
5	Japan	26	3.9%
6	Australia	10	1.5%
7	India	9	1.4%
8	Canada	7	1.1%
9	Netherlands	7	1.1%
10	Spain	7	1.1%
11	Romania	4	0.6%
12	Korea, Republic of	4	0.6%
13	Argentina	3	0.5%
14	Cyprus	3	0.5%
15	France	3	0.5%
16	Iran, Islamic Republic of	3	0.5%
17	Mongolia	2	0.3%
18	Saudi Arabia	2	0.3%
19	Turkey	2	0.3%
20	Ukraine	2	0.3%
21	United Kingdom	2	0.3%
22	Colombia	2	0.3%
23	Hong Kong	2	0.3%
24	Indonesia	1	0.2%
25	Lithuania	1	0.2%
26	Malaysia	1	0.2%
27	New Zealand	1	0.2%
28	Russia	1	0.2%
29	Taiwan	1	0.2%