#dinucleotide	frequency
AA	1856	0.0950917102162
AC	1354	0.0693718618711
AG	892	0.0457014038324
AT	1672	0.0856645148068
CA	1419	0.072702121119
CC	1591	0.0815144994364
CG	450	0.0230556409468
CT	1501	0.0769033712471
GA	730	0.0374013730915
GC	763	0.0390921200943
GG	582	0.0298186289579
GT	753	0.0385797725177
TA	1769	0.0906342862998
TC	1253	0.0641971513475
TG	904	0.0463162209243
TT	2029	0.103955323291