#dinucleotide	frequency
AA	210236	0.161977045111
AC	56366	0.0434273774459
AG	53720	0.0413887576978
AT	159588	0.122955120318
CA	75721	0.0583395033811
CC	28790	0.0221813539486
CG	19445	0.014981466743
CN	1	7.70453419542e-07
CT	50157	0.038643632164
GA	59124	0.045552287977
GC	33403	0.025735455573
GG	29502	0.0227299167833
GT	55531	0.0427840488406
NG	3	2.31136025863e-06
TA	134826	0.103877152743
TC	55555	0.0428025397227
TG	74892	0.0577007974963
TN	2	1.54090683908e-06
TT	201075	0.154918921334