#dinucleotide	frequency
AA	1126	0.0846680201519
AC	166	0.0124821415144
AG	560	0.0421084292052
AT	1433	0.107752462591
CA	200	0.0150387247161
CC	106	0.00797052409956
CG	98	0.00736897511091
CT	436	0.0327844198812
GA	452	0.0339875178585
GC	152	0.0114294307843
GG	592	0.0445146251598
GT	1111	0.0835401157982
TA	1507	0.113316790736
TC	416	0.0312805474096
TG	1058	0.0795548537484
TT	3886	0.292202421235