Rank	Countries/Territories	Count	Percent
1	United States	402	41.1%
2	China	273	27.9%
3	Germany	90	9.2%
4	Singapore	44	4.5%
5	France	39	4%
6	Russia	20	2%
7	Japan	15	1.5%
8	Canada	14	1.4%
9	Netherlands	11	1.1%
10	Cyprus	7	0.7%
11	India	7	0.7%
12	Ireland	4	0.4%
13	Latvia	4	0.4%
14	United Kingdom	4	0.4%
15	Turkey	3	0.3%
16	Nigeria	3	0.3%
17	Norway	3	0.3%
18	Malaysia	3	0.3%
19	Portugal	3	0.3%
20	Italy	3	0.3%
21	Argentina	3	0.3%
22	Australia	3	0.3%
23	Bangladesh	3	0.3%
24	Hong Kong	3	0.3%
25	Iran, Islamic Republic of	2	0.2%
26	Korea, Republic of	2	0.2%
27	Mongolia	2	0.2%
28	Poland	2	0.2%
29	Spain	2	0.2%
30	Switzerland	2	0.2%
31	Romania	1	0.1%
32	Lithuania	1	0.1%