#dinucleotide	frequency
AA	2006909	0.0722414206813
AC	1310767	0.0471828420034
AG	1662286	0.0598362467948
AN	1070	3.85161061757e-05
AT	1808224	0.0650894837136
CA	1714589	0.0617189644596
CC	1434986	0.0516542739595
CG	1186680	0.0427161615669
CN	751	2.70332670448e-05
CT	1666290	0.0599803762239
GA	1775318	0.0639049874614
GC	1481782	0.0533387596648
GG	1437194	0.0517337539244
GN	1017	3.66082990474e-05
GT	1311416	0.0472062036416
NA	929	3.34406192872e-05
NC	1074	3.86600916194e-05
NG	732	2.63493361875e-05
NN	2178081	0.0784029897713
NT	1054	3.79401644011e-05
TA	1291512	0.046489732074
TC	1774640	0.0638805819287
TG	1719878	0.0619093492124
TN	951	3.42325392272e-05
TT	2012456	0.0724410924953