#dinucleotide	frequency
AA	2519	0.150793175696
AC	1613	0.0965579167914
AG	766	0.0458545345705
AN	1	5.98623166717e-05
AT	1864	0.111583358276
CA	1646	0.0985333732415
CC	984	0.0589045196049
CG	245	0.0146662675846
CT	964	0.0577072732715
GA	695	0.0416043100868
GC	336	0.0201137384017
GG	236	0.0141275067345
GT	359	0.0214905716851
NA	1	5.98623166717e-05
NN	49	0.00293325351691
TA	1903	0.113917988626
TC	905	0.0541753965878
TG	379	0.0226878180186
TT	1240	0.0742292726729