Rank	Countries/Territories	Count	Percent
1	United States	520	28.7%
2	China	495	27.4%
3	Germany	116	6.4%
4	India	85	4.7%
5	Australia	76	4.2%
6	United Kingdom	53	2.9%
7	Indonesia	45	2.5%
8	France	40	2.2%
9	Ireland	31	1.7%
10	Taiwan	30	1.7%
11	Russia	27	1.5%
12	Japan	24	1.3%
13	Canada	20	1.1%
14	Pakistan	20	1.1%
15	Switzerland	19	1.1%
16	Egypt	19	1.1%
17	Netherlands	18	1%
18	Korea, Republic of	14	0.8%
19	Singapore	13	0.7%
20	Saudi Arabia	12	0.7%
21	Ghana	11	0.6%
22	Cyprus	11	0.6%
23	Malaysia	9	0.5%
24	Nigeria	8	0.4%
25	South Africa	7	0.4%
26	Mexico	7	0.4%
27	Libya	6	0.3%
28	Iran, Islamic Republic of	6	0.3%
29	Iraq	6	0.3%
30	Ethiopia	6	0.3%
31	Brazil	6	0.3%
32	Uganda	5	0.3%
33	Ukraine	4	0.2%
34	Turkey	4	0.2%
35	Yemen	4	0.2%
36	Mauritius	4	0.2%
37	New Zealand	3	0.2%
38	Argentina	3	0.2%
39	Spain	3	0.2%
40	United Arab Emirates	2	0.1%
41	Bangladesh	2	0.1%
42	Cayman Islands	2	0.1%
43	Grenada	2	0.1%
44	Hong Kong	2	0.1%
45	Israel	2	0.1%
46	Kuwait	2	0.1%
47	Latvia	2	0.1%
48	Bahrain	1	0.1%
49	Norway	1	0.1%
50	Poland	1	0.1%