Rank	Countries/Territories	Count	Percent
1	United States	235	34.5%
2	China	227	33.3%
3	Germany	84	12.3%
4	Canada	31	4.5%
5	France	21	3.1%
6	Japan	10	1.5%
7	Netherlands	10	1.5%
8	Iran, Islamic Republic of	9	1.3%
9	Singapore	9	1.3%
10	India	6	0.9%
11	United Kingdom	5	0.7%
12	Russia	4	0.6%
13	Australia	4	0.6%
14	Cyprus	3	0.4%
15	Egypt	3	0.4%
16	South Africa	3	0.4%
17	Turkey	2	0.3%
18	Serbia	2	0.3%
19	Poland	2	0.3%
20	Croatia	2	0.3%
21	Brazil	2	0.3%
22	Korea, Republic of	2	0.3%
23	Malaysia	1	0.1%
24	Peru	1	0.1%
25	Belgium	1	0.1%
26	Puerto Rico	1	0.1%
27	Ukraine	1	0.1%
28	Switzerland	1	0.1%