Rank	Countries/Territories	Count	Percent
1	United States	427	32.7%
2	China	403	30.9%
3	Germany	128	9.8%
4	Norway	40	3.1%
5	Korea, Republic of	28	2.1%
6	Netherlands	28	2.1%
7	Egypt	28	2.1%
8	France	28	2.1%
9	Japan	24	1.8%
10	United Kingdom	17	1.3%
11	Belgium	16	1.2%
12	India	13	1%
13	Australia	11	0.8%
14	Singapore	11	0.8%
15	Canada	10	0.8%
16	Mexico	10	0.8%
17	Pakistan	8	0.6%
18	Poland	8	0.6%
19	Indonesia	7	0.5%
20	Hong Kong	6	0.5%
21	Bolivia, Plurinational State of	5	0.4%
22	Russia	5	0.4%
23	United Arab Emirates	4	0.3%
24	Philippines	4	0.3%
25	Malaysia	4	0.3%
26	Brazil	3	0.2%
27	Taiwan	3	0.2%
28	Viet Nam	3	0.2%
29	Thailand	2	0.2%
30	Cyprus	2	0.2%
31	Czech Republic	2	0.2%
32	Iran, Islamic Republic of	2	0.2%
33	Portugal	2	0.2%
34	Spain	2	0.2%
35	Sweden	1	0.1%
36	Switzerland	1	0.1%
37	Liberia	1	0.1%
38	Lithuania	1	0.1%
39	Paraguay	1	0.1%
40	Mongolia	1	0.1%
41	Ireland	1	0.1%
42	Hungary	1	0.1%
43	Jordan	1	0.1%
44	Argentina	1	0.1%
45	Turkey	1	0.1%