Rank	Countries/Territories	Count	Percent
1	United States	535	34.8%
2	China	212	13.8%
3	Canada	198	12.9%
4	Germany	123	8%
5	United Kingdom	49	3.2%
6	Netherlands	27	1.8%
7	Iran, Islamic Republic of	25	1.6%
8	Philippines	22	1.4%
9	Ukraine	22	1.4%
10	France	19	1.2%
11	Australia	17	1.1%
12	Korea, Republic of	17	1.1%
13	Hong Kong	16	1%
14	Japan	16	1%
15	Brazil	16	1%
16	Norway	16	1%
17	Russia	16	1%
18	Indonesia	15	1%
19	India	14	0.9%
20	Pakistan	11	0.7%
21	Taiwan	10	0.6%
22	Turkey	9	0.6%
23	Kenya	8	0.5%
24	Malaysia	7	0.5%
25	Spain	7	0.5%
26	Nigeria	7	0.5%
27	Slovakia	7	0.5%
28	Sweden	6	0.4%
29	Switzerland	6	0.4%
30	Greece	6	0.4%
31	Cyprus	5	0.3%
32	Mexico	5	0.3%
33	Slovenia	5	0.3%
34	Romania	5	0.3%
35	Papua New Guinea	4	0.3%
36	Singapore	4	0.3%
37	Thailand	4	0.3%
38	South Africa	3	0.2%
39	Jamaica	3	0.2%
40	Ireland	3	0.2%
41	Egypt	3	0.2%
42	Belgium	3	0.2%
43	Costa Rica	2	0.1%
44	Austria	2	0.1%
45	Ghana	2	0.1%
46	Lebanon	2	0.1%
47	Sierra Leone	2	0.1%
48	Saudi Arabia	2	0.1%
49	Morocco	2	0.1%
50	Nepal	2	0.1%
51	Portugal	2	0.1%
52	Uganda	2	0.1%
53	Sudan	1	0.1%
54	Viet Nam	1	0.1%
55	Zimbabwe	1	0.1%
56	Palestine, State of	1	0.1%
57	Serbia	1	0.1%
58	Lithuania	1	0.1%
59	Latvia	1	0.1%
60	Mongolia	1	0.1%
61	Malta	1	0.1%
62	Italy	1	0.1%
63	Denmark	1	0.1%
64	Georgia	1	0.1%
65	Cambodia	1	0.1%