#dinucleotide	frequency
AA	2630	0.162636818997
AC	1032	0.0638179457053
AG	528	0.0326510419887
AT	2267	0.14018922763
CA	941	0.0581905880898
CC	622	0.0384639168883
CG	133	0.00822459959186
CT	981	0.0606641518768
GA	474	0.0293117308763
GC	270	0.0166965555624
GG	209	0.0129243707872
GT	348	0.0215200049471
TA	2411	0.149094057263
TC	753	0.0465648382908
TG	431	0.0266526498052
TT	2141	0.132397501701