#dinucleotide	frequency
AA	2780	0.17514017514
AC	617	0.038871038871
AG	588	0.037044037044
AT	2325	0.146475146475
CA	667	0.042021042021
CC	350	0.02205002205
CG	107	0.00674100674101
CT	829	0.0522270522271
GA	605	0.038115038115
GC	233	0.014679014679
GG	220	0.01386001386
GT	320	0.02016002016
TA	2258	0.142254142254
TC	753	0.047439047439
TG	463	0.029169029169
TT	2758	0.173754173754