Rank	Countries/Territories	Count	Percent
1	United States	263	38.1%
2	China	233	33.8%
3	Germany	55	8%
4	Iran, Islamic Republic of	16	2.3%
5		14	2%
6	Japan	13	1.9%
7	India	9	1.3%
8	United Kingdom	8	1.2%
9	Singapore	7	1%
10	Korea, Republic of	7	1%
11	Italy	6	0.9%
12	Netherlands	6	0.9%
13	Russia	5	0.7%
14	Romania	4	0.6%
15	France	4	0.6%
16	Hong Kong	4	0.6%
17	Cyprus	4	0.6%
18	Australia	3	0.4%
19	Brazil	3	0.4%
20	Ireland	3	0.4%
21	New Zealand	3	0.4%
22	Peru	3	0.4%
23	Uganda	2	0.3%
24	Viet Nam	2	0.3%
25	Kuwait	2	0.3%
26	Lithuania	2	0.3%
27	Malaysia	2	0.3%
28	Czech Republic	2	0.3%
29	Greece	1	0.1%
30	Canada	1	0.1%
31	Argentina	1	0.1%
32	Switzerland	1	0.1%
33	Taiwan	1	0.1%