#dinucleotide	frequency
AA	1483	0.0819110742889
AC	517	0.0285556476112
AG	1030	0.0568903617785
AT	1515	0.0836785418393
CA	613	0.0338580502624
CC	523	0.0288870477769
CG	434	0.0239712786523
CT	948	0.0523612261806
GA	944	0.0521402927368
GC	671	0.0370615851975
GG	1477	0.0815796741232
GT	1244	0.0687103010218
TA	1506	0.0831814415907
TC	806	0.0445180889257
TG	1395	0.0770505385253
TT	2999	0.165644849489