#dinucleotide	frequency
AA	140156	0.0281304103312
AC	235078	0.0471820014828
AG	250057	0.0501884044649
AN	2	4.01415712936e-07
AT	202635	0.0406704364954
CA	259567	0.0520971361799
CC	482536	0.0968487662287
CG	663901	0.133250146617
CN	1	2.00707856468e-07
CT	252333	0.0506452155462
GA	363265	0.0729101394799
GC	576255	0.115658905829
GG	483662	0.0970747632751
GN	3	6.02123569405e-07
GT	234053	0.0469762759299
NA	2	4.01415712936e-07
NC	2	4.01415712936e-07
NG	1	2.00707856468e-07
NN	9384	0.0018834425251
NT	1	2.00707856468e-07
TA	64938	0.0130335667833
TC	364465	0.0731509889077
TG	259620	0.0521077736963
TT	140449	0.0281892177331