Rank	Countries/Territories	Count	Percent
1	United States	521	39.3%
2	China	421	31.8%
3	Germany	101	7.6%
4	France	39	2.9%
5	India	32	2.4%
6	Canada	27	2%
7	Japan	23	1.7%
8	United Kingdom	15	1.1%
9	Italy	13	1%
10	Korea, Republic of	11	0.8%
11	Netherlands	11	0.8%
12	Australia	10	0.8%
13	Brazil	10	0.8%
14	Cyprus	9	0.7%
15	Poland	9	0.7%
16	Sweden	7	0.5%
17	Latvia	6	0.5%
18	Iran, Islamic Republic of	4	0.3%
19	Hong Kong	4	0.3%
20	Cuba	4	0.3%
21	Finland	4	0.3%
22	Colombia	4	0.3%
23	Costa Rica	3	0.2%
24	Croatia	3	0.2%
25	Austria	3	0.2%
26	Bangladesh	3	0.2%
27	Singapore	3	0.2%
28	Spain	3	0.2%
29	New Zealand	2	0.2%
30	Mongolia	2	0.2%
31	Czech Republic	2	0.2%
32	Argentina	2	0.2%
33	Togo	2	0.2%
34	Ukraine	2	0.2%
35	Russia	2	0.2%
36	Iceland	1	0.1%
37	Burkina Faso	1	0.1%
38	Burundi	1	0.1%
39	Mozambique	1	0.1%
40	Israel	1	0.1%
41	Norway	1	0.1%
42	Peru	1	0.1%
43	Portugal	1	0.1%