#dinucleotide	frequency
AA	2005867	0.0578761640343
AC	2027591	0.0585029761747
AG	2370666	0.0684018702569
AN	172	4.96279175733e-06
AT	1841029	0.0531200206175
CA	2309145	0.066626777747
CC	1981789	0.0571814308952
CG	2120309	0.0611782094663
CN	153	4.41457638879e-06
CT	2359880	0.0680906570482
GA	2217648	0.0639867745062
GC	2557018	0.0737787665916
GG	1990979	0.0574465940129
GN	169	4.87623143598e-06
GT	2027927	0.0585126709307
NA	266	7.6750151596e-06
NC	152	4.38572294834e-06
NG	174	5.02049863823e-06
NN	616113	0.0177769797557
NT	148	4.27030918654e-06
TA	1712413	0.0494090065206
TC	2204746	0.0636145074175
TG	2311582	0.0666970935814
TN	246	7.09794635061e-06
TT	2001730	0.0577567973512