#dinucleotide	frequency
AA	1325	0.0926573426573
AC	278	0.0194405594406
AG	803	0.0561538461538
AT	1790	0.125174825175
CA	312	0.0218181818182
CC	121	0.00846153846154
CG	116	0.00811188811189
CT	403	0.0281818181818
GA	626	0.0437762237762
GC	171	0.011958041958
GG	527	0.0368531468531
GT	1076	0.0752447552448
NA	1	6.99300699301e-05
NT	1	6.99300699301e-05
TA	1931	0.135034965035
TC	382	0.0267132867133
TG	954	0.0667132867133
TN	2	0.00013986013986
TT	3481	0.243426573427