Rank	Countries/Territories	Count	Percent
1	United States	268	39.5%
2	China	171	25.2%
3	Germany	73	10.8%
4	Canada	22	3.2%
5	Japan	15	2.2%
6	Netherlands	14	2.1%
7	Singapore	12	1.8%
8	India	11	1.6%
9	France	9	1.3%
10	Belarus	9	1.3%
11	Croatia	7	1%
12	Ukraine	7	1%
13	Senegal	6	0.9%
14	Korea, Republic of	6	0.9%
15	Hong Kong	6	0.9%
16	Turkey	5	0.7%
17	Switzerland	5	0.7%
18	Mexico	3	0.4%
19	Pakistan	3	0.4%
20	Italy	3	0.4%
21	Iran, Islamic Republic of	3	0.4%
22	Cyprus	3	0.4%
23	Bangladesh	2	0.3%
24	Bolivia, Plurinational State of	2	0.3%
25	Argentina	2	0.3%
26	Ireland	2	0.3%
27	Taiwan	2	0.3%
28	United Kingdom	1	0.1%
29	Romania	1	0.1%
30	South Africa	1	0.1%
31	Spain	1	0.1%
32	Mongolia	1	0.1%
33	Georgia	1	0.1%
34	Honduras	1	0.1%
35	Australia	1	0.1%