Rank	Countries/Territories	Count	Percent
1	United States	391	40%
2	China	330	33.8%
3	Germany	95	9.7%
4		23	2.4%
5	France	17	1.7%
6	Japan	16	1.6%
7	United Kingdom	15	1.5%
8	Singapore	13	1.3%
9	Netherlands	11	1.1%
10	Canada	9	0.9%
11	Cyprus	6	0.6%
12	Ireland	6	0.6%
13	Switzerland	6	0.6%
14	Russia	4	0.4%
15	Iran, Islamic Republic of	4	0.4%
16	Bulgaria	4	0.4%
17	Hong Kong	4	0.4%
18	Korea, Republic of	3	0.3%
19	Poland	3	0.3%
20	Mauritius	2	0.2%
21	Ukraine	2	0.2%
22	Macao	2	0.2%
23	Indonesia	2	0.2%
24	Hungary	2	0.2%
25	Argentina	2	0.2%
26	Australia	1	0.1%
27	India	1	0.1%
28	Malaysia	1	0.1%
29	Mongolia	1	0.1%
30	Sweden	1	0.1%