Rank	Countries/Territories	Count	Percent
1	United States	461	39.6%
2	China	286	24.6%
3	Germany	146	12.6%
4	India	36	3.1%
5	Canada	28	2.4%
6	Netherlands	16	1.4%
7	Korea, Republic of	15	1.3%
8	Norway	13	1.1%
9	Japan	10	0.9%
10	Australia	10	0.9%
11	France	10	0.9%
12	Turkey	10	0.9%
13	Taiwan	8	0.7%
14	Thailand	8	0.7%
15	Hong Kong	8	0.7%
16	Ireland	7	0.6%
17	Cyprus	7	0.6%
18	United Kingdom	7	0.6%
19	Czech Republic	6	0.5%
20	Egypt	6	0.5%
21	Belgium	6	0.5%
22	Switzerland	5	0.4%
23	Italy	4	0.3%
24	Pakistan	4	0.3%
25	Philippines	3	0.3%
26	Romania	3	0.3%
27	Malaysia	3	0.3%
28	Bangladesh	3	0.3%
29	Argentina	3	0.3%
30	Ghana	3	0.3%
31	Saudi Arabia	3	0.3%
32	Spain	3	0.3%
33	Morocco	2	0.2%
34	Singapore	2	0.2%
35	South Africa	2	0.2%
36	United Arab Emirates	2	0.2%
37	Chile	2	0.2%
38	Indonesia	2	0.2%
39	Mongolia	1	0.1%
40	Russia	1	0.1%
41	Oman	1	0.1%
42	Nigeria	1	0.1%
43	Bolivia, Plurinational State of	1	0.1%
44	Brazil	1	0.1%
45	Cameroon	1	0.1%
46	Viet Nam	1	0.1%
47	Uganda	1	0.1%
48	Ukraine	1	0.1%