#dinucleotide	frequency
AA	5500	0.14595440915
AC	1124	0.0298277737972
AG	1679	0.0445559005387
AT	6976	0.185123265133
CA	1341	0.0355863386673
CC	489	0.0129766738317
CG	330	0.008757264549
CT	1119	0.0296950879707
GA	1541	0.0408937717273
GC	558	0.0148077382374
GG	858	0.0227688878274
GT	1431	0.0379746835443
TA	6898	0.183053366239
TC	1108	0.0294031791524
TG	1521	0.0403630284213
TT	5210	0.138258631213