#dinucleotide	frequency
AA	1538	0.107771004134
AC	280	0.0196202088151
AG	835	0.0585102655735
AT	2002	0.140284493028
CA	315	0.022072734917
CC	200	0.0140144348679
CG	153	0.010721042674
CT	573	0.0401513558966
GA	899	0.0629948847313
GC	232	0.0162567444468
GG	518	0.0362973863079
GT	764	0.0535351411954
TA	1904	0.133417419943
TC	529	0.0370681802256
TG	907	0.063555462126
TT	2622	0.183729241118