#dinucleotide	frequency
AA	1942	0.112893849552
AC	1589	0.0923729798861
AG	769	0.0447041041739
AT	1497	0.0870247645623
CA	1673	0.0972561330078
CC	1477	0.0858621090571
CG	426	0.0247645622602
CT	1259	0.0731891640507
GA	653	0.0379607022439
GC	643	0.0373793744913
GG	499	0.0290082548541
GT	438	0.0254621555633
TA	1530	0.0889431461458
TC	1126	0.0654575049413
TG	538	0.0312754330892
TT	1143	0.0664457621207