Rank	Countries/Territories	Count	Percent
1	United States	577	45.9%
2	China	414	33%
3	Germany	92	7.3%
4	France	22	1.8%
5	Switzerland	15	1.2%
6	Norway	12	1%
7	Singapore	12	1%
8	Netherlands	11	0.9%
9	Canada	10	0.8%
10	Japan	8	0.6%
11	United Kingdom	7	0.6%
12	Ireland	6	0.5%
13	India	6	0.5%
14	Egypt	5	0.4%
15	Cyprus	5	0.4%
16	Romania	5	0.4%
17	Russia	5	0.4%
18	Turkey	5	0.4%
19	Mexico	4	0.3%
20	Australia	4	0.3%
21	Bangladesh	3	0.2%
22	Belarus	3	0.2%
23	Hong Kong	3	0.2%
24	Lebanon	3	0.2%
25	Sweden	3	0.2%
26	Malaysia	2	0.2%
27	Korea, Republic of	2	0.2%
28	Georgia	2	0.2%
29	Guatemala	1	0.1%
30	Iran, Islamic Republic of	1	0.1%
31	Bulgaria	1	0.1%
32	Ecuador	1	0.1%
33	Argentina	1	0.1%
34	Pakistan	1	0.1%
35	Slovakia	1	0.1%
36	Slovenia	1	0.1%
37	Spain	1	0.1%
38	Ukraine	1	0.1%