Rank	Countries/Territories	Count	Percent
1	United States	251	23.1%
2	China	167	15.4%
3	Japan	131	12.1%
4	Germany	81	7.5%
5	India	45	4.1%
6	Canada	41	3.8%
7	Singapore	41	3.8%
8	Netherlands	40	3.7%
9	Nigeria	26	2.4%
10	United Kingdom	20	1.8%
11	Ireland	18	1.7%
12	Ghana	18	1.7%
13	Indonesia	13	1.2%
14	Ethiopia	12	1.1%
15	Slovakia	10	0.9%
16	Romania	9	0.8%
17	Korea, Republic of	9	0.8%
18	Brazil	9	0.8%
19	Norway	8	0.7%
20	Italy	7	0.6%
21	Russia	6	0.6%
22	Australia	6	0.6%
23	Iran, Islamic Republic of	6	0.6%
24	France	5	0.5%
25	Belgium	5	0.5%
26	Egypt	5	0.5%
27	Tanzania, United Republic of	5	0.5%
28	Turkey	5	0.5%
29	Thailand	4	0.4%
30	Switzerland	4	0.4%
31	Rwanda	4	0.4%
32	Morocco	4	0.4%
33	Denmark	4	0.4%
34	Colombia	4	0.4%
35	Cyprus	3	0.3%
36	Czech Republic	3	0.3%
37	Hong Kong	3	0.3%
38	Hungary	3	0.3%
39	Nicaragua	3	0.3%
40	Slovenia	3	0.3%
41	Viet Nam	3	0.3%
42	Zambia	2	0.2%
43	South Africa	2	0.2%
44	Spain	2	0.2%
45	New Zealand	2	0.2%
46	Malawi	2	0.2%
47	Mauritius	2	0.2%
48	Greece	2	0.2%
49	Haiti	2	0.2%
50	Bangladesh	2	0.2%
51	Argentina	2	0.2%
52	Algeria	1	0.1%
53	Belarus	1	0.1%
54	Bosnia and Herzegovina	1	0.1%
55	Cameroon	1	0.1%
56	Chile	1	0.1%
57	Israel	1	0.1%
58	Libya	1	0.1%
59	Macao	1	0.1%
60	Kenya	1	0.1%
61	Mexico	1	0.1%
62	Malaysia	1	0.1%
63	Mozambique	1	0.1%
64	Nepal	1	0.1%
65	Saudi Arabia	1	0.1%
66	Pakistan	1	0.1%
67	Philippines	1	0.1%
68	Poland	1	0.1%
69	Sweden	1	0.1%
70	Taiwan	1	0.1%
71	Yemen	1	0.1%
72	Uganda	1	0.1%