#dinucleotide	frequency
AA	1996	0.126257195269
AC	1005	0.0635713833892
AG	697	0.0440888101714
AT	1579	0.0998798152951
CA	976	0.0617369852616
CC	1056	0.0667973938896
CG	312	0.0197355936492
CT	1257	0.0795116705674
GA	660	0.041748371181
GC	427	0.0270099310519
GG	405	0.0256183186792
GT	430	0.0271996963755
TA	1644	0.103991397305
TC	1114	0.0704661901449
TG	508	0.0321335947878
TT	1743	0.110253652982