Rank	Countries/Territories	Count	Percent
1	United States	471	39.6%
2	China	329	27.7%
3	Germany	81	6.8%
4	Canada	49	4.1%
5	India	33	2.8%
6	France	23	1.9%
7	Singapore	23	1.9%
8	Australia	19	1.6%
9	Netherlands	17	1.4%
10	United Kingdom	15	1.3%
11	Ireland	14	1.2%
12	Japan	12	1%
13	Korea, Republic of	9	0.8%
14	Pakistan	9	0.8%
15	Russia	8	0.7%
16	Switzerland	7	0.6%
17	Peru	6	0.5%
18	Poland	6	0.5%
19	Romania	5	0.4%
20	Spain	4	0.3%
21	Italy	4	0.3%
22	Cyprus	4	0.3%
23	Ukraine	4	0.3%
24	Thailand	3	0.3%
25	Argentina	3	0.3%
26	Finland	2	0.2%
27	Denmark	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Belgium	2	0.2%
30	Brazil	2	0.2%
31	Bulgaria	2	0.2%
32	Saudi Arabia	2	0.2%
33	Nepal	2	0.2%
34	Malaysia	2	0.2%
35	United Arab Emirates	2	0.2%
36	Taiwan	1	0.1%
37	Mexico	1	0.1%
38	Mongolia	1	0.1%
39	Sweden	1	0.1%
40	Luxembourg	1	0.1%
41	Puerto Rico	1	0.1%
42	Chile	1	0.1%
43	Colombia	1	0.1%
44	Indonesia	1	0.1%
45	Egypt	1	0.1%