Rank	Countries/Territories	Count	Percent
1	United States	873	36.5%
2	China	675	28.2%
3	Germany	190	7.9%
4	Canada	93	3.9%
5	India	74	3.1%
6	France	71	3%
7	Netherlands	59	2.5%
8	Ireland	46	1.9%
9	Japan	42	1.8%
10	Switzerland	22	0.9%
11	Turkey	20	0.8%
12	Cyprus	18	0.8%
13	Korea, Republic of	17	0.7%
14	United Kingdom	17	0.7%
15	Iran, Islamic Republic of	16	0.7%
16	Israel	15	0.6%
17	Australia	15	0.6%
18	Singapore	15	0.6%
19	Nigeria	11	0.5%
20	Tunisia	8	0.3%
21	Romania	7	0.3%
22	Russia	7	0.3%
23	Taiwan	7	0.3%
24	Spain	7	0.3%
25	Poland	7	0.3%
26	Egypt	6	0.3%
27	Philippines	4	0.2%
28	Ukraine	4	0.2%
29	Saudi Arabia	3	0.1%
30	Albania	3	0.1%
31	Brazil	3	0.1%
32	Cote D'ivoire	3	0.1%
33	Italy	3	0.1%
34	Latvia	3	0.1%
35	Norway	2	0.1%
36	Pakistan	2	0.1%
37	Chile	2	0.1%
38	Bulgaria	2	0.1%
39	Slovakia	2	0.1%
40	South Africa	2	0.1%
41	Sweden	2	0.1%
42	United Arab Emirates	1	0%
43	Bangladesh	1	0%
44	Greece	1	0%
45	Hong Kong	1	0%
46	Ethiopia	1	0%
47	Czech Republic	1	0%
48	Denmark	1	0%
49	Peru	1	0%
50	Portugal	1	0%
51	Kuwait	1	0%
52	Lithuania	1	0%
53	Moldova, Republic of	1	0%
54	Mongolia	1	0%
55	Morocco	1	0%