Rank	Countries/Territories	Count	Percent
1	United States	439	32.1%
2	China	426	31.2%
3	Germany	129	9.4%
4	Norway	40	2.9%
5	Netherlands	32	2.3%
6	Korea, Republic of	30	2.2%
7	Egypt	29	2.1%
8	France	28	2%
9	Japan	24	1.8%
10	United Kingdom	19	1.4%
11	India	17	1.2%
12	Belgium	16	1.2%
13	Singapore	13	1%
14	Australia	11	0.8%
15	Pakistan	10	0.7%
16	Canada	10	0.7%
17	Mexico	10	0.7%
18	Poland	8	0.6%
19	Indonesia	7	0.5%
20	Hong Kong	6	0.4%
21	Sweden	6	0.4%
22	Russia	5	0.4%
23	Bolivia, Plurinational State of	5	0.4%
24	Philippines	4	0.3%
25	Malaysia	4	0.3%
26	United Arab Emirates	4	0.3%
27	Viet Nam	3	0.2%
28	Taiwan	3	0.2%
29	Brazil	3	0.2%
30	Cyprus	3	0.2%
31	Czech Republic	2	0.1%
32	Ghana	2	0.1%
33	Iran, Islamic Republic of	2	0.1%
34	Portugal	2	0.1%
35	Spain	2	0.1%
36	Thailand	2	0.1%
37	Turkey	1	0.1%
38	Switzerland	1	0.1%
39	Paraguay	1	0.1%
40	Mongolia	1	0.1%
41	Jordan	1	0.1%
42	Liberia	1	0.1%
43	Lithuania	1	0.1%
44	Ireland	1	0.1%
45	Hungary	1	0.1%
46	Argentina	1	0.1%