Rank	Countries/Territories	Count	Percent
1	United States	472	54.1%
2	China	129	14.8%
3	Germany	81	9.3%
4	France	48	5.5%
5	India	22	2.5%
6	Korea, Republic of	21	2.4%
7	Iran, Islamic Republic of	13	1.5%
8	Japan	13	1.5%
9	Hong Kong	10	1.1%
10	Cyprus	8	0.9%
11	Netherlands	7	0.8%
12	United Kingdom	7	0.8%
13	Poland	6	0.7%
14	Canada	6	0.7%
15	Australia	4	0.5%
16	Switzerland	4	0.5%
17	Russia	3	0.3%
18	Singapore	2	0.2%
19	Taiwan	2	0.2%
20	Ukraine	2	0.2%
21	Djibouti	2	0.2%
22	Norway	2	0.2%
23	Philippines	2	0.2%
24	Pakistan	1	0.1%
25	Italy	1	0.1%
26	Mauritius	1	0.1%
27	Austria	1	0.1%
28	Brazil	1	0.1%
29	Slovakia	1	0.1%
30	Spain	1	0.1%