#dinucleotide	frequency
AA	18674	0.150145127962
AC	4998	0.0401855708232
AG	6294	0.0506058388879
AT	14004	0.112596785476
CA	5631	0.0452750999011
CC	3696	0.0297170607769
CG	2540	0.0204224389538
CT	6304	0.0506862421908
GA	6016	0.0483706270654
GC	3428	0.0275622522573
GG	3780	0.0303924485218
GT	5067	0.0407403536137
TA	13648	0.10973442789
TC	6049	0.0486359579652
TG	5677	0.0456449550948
TT	18567	0.14928481262