#dinucleotide	frequency
AA	480	0.0320769847634
AC	383	0.0255947607592
AG	817	0.0545977011494
AN	1	6.68270515905e-05
AT	658	0.0439721999465
CA	444	0.0296712109062
CC	456	0.0304731355253
CG	584	0.0390269981288
CN	1	6.68270515905e-05
CT	1065	0.0711708099439
GA	828	0.0553327987169
GC	698	0.0466452820102
GG	1581	0.105653568565
GT	1571	0.104985298049
NA	1	6.68270515905e-05
NC	1	6.68270515905e-05
TA	586	0.039160652232
TC	1012	0.0676289762096
TG	1696	0.113338679497
TT	2101	0.140403635392