#dinucleotide	frequency
AA	1380153	0.0420073206991
AC	1990373	0.0605804116803
AG	2073185	0.0631009367538
AT	1116719	0.0339892556577
CA	2387571	0.0726698131938
CC	2363431	0.071935070943
CG	2974892	0.0905459338849
CN	1	3.0436712958e-08
CT	2126964	0.0647377927399
GA	2053568	0.0625038597557
GC	3390395	0.103192479429
GG	2318901	0.0705797241149
GN	5	1.5218356479e-07
GT	2005230	0.0610326099247
NA	1	3.0436712958e-08
NC	1	3.0436712958e-08
NG	5	1.5218356479e-07
NN	4	1.21746851832e-07
TA	739139	0.022496961579
TC	2108650	0.0641803747788
TG	2401122	0.0730822610911
TN	3	9.13101388739e-08
TT	1424746	0.04336458504