Rank	Countries/Territories	Count	Percent
1	United States	503	36.4%
2	China	464	33.6%
3	Germany	131	9.5%
4	Japan	53	3.8%
5	France	43	3.1%
6	United Kingdom	27	2%
7	Canada	17	1.2%
8	India	12	0.9%
9	Ukraine	12	0.9%
10	Netherlands	10	0.7%
11	Australia	10	0.7%
12	Cyprus	9	0.7%
13	Sweden	9	0.7%
14	Switzerland	8	0.6%
15	Singapore	8	0.6%
16	Iran, Islamic Republic of	8	0.6%
17	Czech Republic	6	0.4%
18	Poland	6	0.4%
19	Spain	5	0.4%
20	Italy	5	0.4%
21	Taiwan	5	0.4%
22	Russia	5	0.4%
23	Hong Kong	4	0.3%
24	Egypt	3	0.2%
25	Belgium	3	0.2%
26	Norway	3	0.2%
27	Romania	3	0.2%
28	Finland	2	0.1%
29	Ireland	2	0.1%
30	Korea, Republic of	2	0.1%
31	Malaysia	2	0.1%
32	Mexico	1	0.1%
33	Argentina	1	0.1%