#dinucleotide	frequency
AA	1866	0.113545089449
AC	1321	0.080382134599
AG	860	0.0523305342582
AT	1536	0.0934647681636
AY	1	6.08494584398e-05
CA	1381	0.0840331021054
CC	1212	0.0737495436291
CG	333	0.0202628696605
CT	1243	0.0756358768407
GA	700	0.0425946209079
GC	594	0.0361445783133
GG	401	0.0244006328344
GT	466	0.028355847633
NA	1	6.08494584398e-05
TA	1637	0.099610563466
TC	1041	0.0633442862359
TG	566	0.0344407934769
TN	1	6.08494584398e-05
TT	1271	0.077339661677
TY	1	6.08494584398e-05
YC	1	6.08494584398e-05
YT	1	6.08494584398e-05