Rank	Countries/Territories	Count	Percent
1	United States	757	37.3%
2	China	330	16.2%
3	Germany	158	7.8%
4	Canada	71	3.5%
5	Australia	68	3.3%
6	United Kingdom	57	2.8%
7	India	39	1.9%
8	Cuba	38	1.9%
9	France	36	1.8%
10	Brazil	30	1.5%
11	Colombia	25	1.2%
12	Spain	25	1.2%
13	Korea, Republic of	24	1.2%
14	Ireland	24	1.2%
15	Japan	23	1.1%
16	Bulgaria	21	1%
17	Romania	19	0.9%
18	Netherlands	16	0.8%
19	Italy	12	0.6%
20	Denmark	11	0.5%
21	Cyprus	11	0.5%
22	Austria	11	0.5%
23	Lithuania	10	0.5%
24	Mexico	10	0.5%
25	Taiwan	10	0.5%
26	Ukraine	9	0.4%
27	Nigeria	9	0.4%
28	Belgium	9	0.4%
29	Indonesia	9	0.4%
30	Russia	8	0.4%
31	Slovakia	8	0.4%
32	Pakistan	7	0.3%
33	Poland	6	0.3%
34	Malaysia	6	0.3%
35	Singapore	6	0.3%
36	Switzerland	6	0.3%
37	Israel	6	0.3%
38	Bangladesh	6	0.3%
39	Czech Republic	6	0.3%
40	Albania	5	0.2%
41	Ecuador	5	0.2%
42	Sweden	5	0.2%
43	South Africa	5	0.2%
44	Zimbabwe	5	0.2%
45	Viet Nam	5	0.2%
46	Mauritius	4	0.2%
47	Morocco	4	0.2%
48	Iran, Islamic Republic of	4	0.2%
49	Kenya	3	0.1%
50	Finland	3	0.1%
51	Hong Kong	3	0.1%
52	Argentina	3	0.1%
53	Croatia	3	0.1%
54	Mozambique	3	0.1%
55	Turkey	3	0.1%
56	Tunisia	2	0.1%
57	Philippines	2	0.1%
58	Namibia	2	0.1%
59	Nepal	2	0.1%
60	Norway	2	0.1%
61	New Zealand	2	0.1%
62	Guyana	2	0.1%
63	Honduras	2	0.1%
64	Ethiopia	2	0.1%
65	Hungary	1	0%
66	Jamaica	1	0%
67	Chile	1	0%
68	Armenia	1	0%
69	Botswana	1	0%
70	Barbados	1	0%
71	Qatar	1	0%
72	Peru	1	0%
73	Latvia	1	0%
74	Saudi Arabia	1	0%
75	Serbia	1	0%
76	Uganda	1	0%
77	Zambia	1	0%