Rank	Countries/Territories	Count	Percent
1	United States	268	35.8%
2	China	221	29.5%
3	Germany	52	7%
4	Japan	36	4.8%
5		22	2.9%
6	India	16	2.1%
7	Korea, Republic of	15	2%
8	Bolivia, Plurinational State of	11	1.5%
9	Netherlands	10	1.3%
10	Singapore	8	1.1%
11	Australia	8	1.1%
12	Taiwan	7	0.9%
13	Poland	7	0.9%
14	Spain	6	0.8%
15	Cyprus	6	0.8%
16	France	6	0.8%
17	Bangladesh	5	0.7%
18	Mexico	5	0.7%
19	Nepal	4	0.5%
20	Switzerland	4	0.5%
21	United Kingdom	4	0.5%
22	Egypt	4	0.5%
23	Belgium	3	0.4%
24	Bulgaria	3	0.4%
25	Brazil	2	0.3%
26	Iran, Islamic Republic of	2	0.3%
27	Ireland	2	0.3%
28	Thailand	2	0.3%
29	Togo	2	0.3%
30	Ghana	2	0.3%
31	Hong Kong	1	0.1%
32	Italy	1	0.1%
33	Denmark	1	0.1%
34	Chile	1	0.1%
35	Argentina	1	0.1%