Rank	Countries/Territories	Count	Percent
1	United States	865	54.2%
2	China	243	15.2%
3	Germany	188	11.8%
4	Singapore	72	4.5%
5	Canada	48	3%
6	France	30	1.9%
7	Japan	27	1.7%
8	Netherlands	19	1.2%
9	Norway	16	1%
10	Switzerland	12	0.8%
11	Cyprus	12	0.8%
12	Iran, Islamic Republic of	7	0.4%
13	Russia	6	0.4%
14	Morocco	5	0.3%
15	Korea, Republic of	5	0.3%
16	Australia	4	0.3%
17	Portugal	4	0.3%
18	Thailand	4	0.3%
19	South Africa	4	0.3%
20	Ukraine	3	0.2%
21	United Kingdom	3	0.2%
22	Bulgaria	3	0.2%
23	Egypt	3	0.2%
24	Mauritius	3	0.2%
25	Indonesia	2	0.1%
26	Ireland	2	0.1%
27	Philippines	2	0.1%
28	Turkey	1	0.1%
29	Mongolia	1	0.1%
30	Hong Kong	1	0.1%