Rank	Countries/Territories	Count	Percent
1	United States	279	23.9%
2	China	216	18.5%
3	Japan	134	11.5%
4	Germany	86	7.4%
5	Ireland	58	5%
6	Russia	55	4.7%
7	India	53	4.5%
8	Korea, Republic of	32	2.7%
9	Singapore	27	2.3%
10	France	19	1.6%
11	Argentina	18	1.5%
12	Canada	18	1.5%
13	Netherlands	17	1.5%
14	Iran, Islamic Republic of	16	1.4%
15	United Kingdom	11	0.9%
16	Egypt	10	0.9%
17	Australia	9	0.8%
18	Philippines	9	0.8%
19	Hong Kong	7	0.6%
20	Indonesia	7	0.6%
21	Romania	7	0.6%
22	Thailand	7	0.6%
23	Turkey	7	0.6%
24	Taiwan	6	0.5%
25	Cyprus	6	0.5%
26	Bosnia and Herzegovina	4	0.3%
27	Rwanda	4	0.3%
28	Spain	4	0.3%
29	Ukraine	4	0.3%
30	Uganda	3	0.3%
31	Nicaragua	3	0.3%
32	Colombia	3	0.3%
33	Ecuador	3	0.3%
34	Iceland	2	0.2%
35	Mauritius	2	0.2%
36	Mexico	2	0.2%
37	United Arab Emirates	2	0.2%
38	Venezuela, Bolivarian Republic of	2	0.2%
39	Viet Nam	1	0.1%
40	Trinidad and Tobago	1	0.1%
41	Tunisia	1	0.1%
42	Syrian Arab Republic	1	0.1%
43	Portugal	1	0.1%
44	Saudi Arabia	1	0.1%
45	Serbia	1	0.1%
46	Norway	1	0.1%
47	Pakistan	1	0.1%
48	Malaysia	1	0.1%
49	Italy	1	0.1%
50	Denmark	1	0.1%
51	Bahrain	1	0.1%