Rank	Countries/Territories	Count	Percent
1	United States	424	40.8%
2	China	287	27.6%
3	Germany	89	8.6%
4	France	36	3.5%
5	India	32	3.1%
6	Canada	27	2.6%
7	Japan	21	2%
8	Korea, Republic of	11	1.1%
9	Italy	11	1.1%
10	Netherlands	10	1%
11	United Kingdom	10	1%
12	Australia	10	1%
13	Brazil	9	0.9%
14	Poland	9	0.9%
15	Sweden	7	0.7%
16	Cyprus	6	0.6%
17	Finland	4	0.4%
18	Cuba	4	0.4%
19	Iran, Islamic Republic of	4	0.4%
20	Croatia	3	0.3%
21	Singapore	3	0.3%
22	Russia	2	0.2%
23	Togo	2	0.2%
24	New Zealand	2	0.2%
25	Mongolia	2	0.2%
26	Bangladesh	2	0.2%
27	Argentina	2	0.2%
28	Costa Rica	2	0.2%
29	Burkina Faso	1	0.1%
30	Burundi	1	0.1%
31	Israel	1	0.1%
32	Hong Kong	1	0.1%
33	Iceland	1	0.1%
34	Mozambique	1	0.1%
35	Peru	1	0.1%
36	Ukraine	1	0.1%
37	Spain	1	0.1%