#dinucleotide	frequency
AA	18773	0.147253074799
AC	5143	0.0403410517068
AG	6638	0.0520676455823
AN	1	7.84387550201e-06
AT	14518	0.113877384538
CA	5839	0.0458003890562
CC	3846	0.0301675451807
CG	2581	0.0202450426707
CT	6567	0.0515107304217
GA	6435	0.0504753388554
GC	3376	0.0264809236948
GG	3757	0.029469440261
GT	5067	0.0397449171687
NA	2	1.5687751004e-05
NN	3	2.3531626506e-05
NT	1	7.84387550201e-06
TA	14024	0.11000251004
TC	6469	0.0507420306225
TG	5658	0.0443806475904
TN	2	1.5687751004e-05
TT	18788	0.147370732932