#dinucleotide	frequency
AA	1615	0.0956073881127
AC	1418	0.0839450627516
AG	938	0.0555292446128
AT	1269	0.0751243192044
CA	1476	0.0873786407767
CC	1604	0.0949561922804
CG	448	0.0265214302628
CT	1466	0.0867866445655
GA	772	0.0457021075065
GC	757	0.0448141131897
GG	475	0.0281198200332
GT	485	0.0287118162444
TA	1377	0.0815178782856
TC	1215	0.0719275396637
TG	627	0.0371181624438
TT	950	0.0562396400663