#dinucleotide	frequency
AA	1888	0.0939911385473
AC	482	0.0239956190571
AG	1355	0.0674565639468
AT	2243	0.111664260467
CA	636	0.0316622691293
CC	375	0.0186687907602
CG	292	0.0145367650719
CT	788	0.0392293523174
GA	1084	0.0539652511575
GC	522	0.0259869567382
GG	1512	0.0752725643451
GT	1381	0.0687509334395
TA	2361	0.117538706626
TC	712	0.0354458107234
TG	1339	0.0666600288744
TT	3117	0.155174988799