#dinucleotide	frequency
AA	2432	0.159915833772
AC	539	0.0354418726986
AG	463	0.0304445028932
AR	1	6.57548658601e-05
AT	2347	0.154326670174
AY	1	6.57548658601e-05
CA	622	0.040899526565
CC	487	0.0320226196739
CG	99	0.00650973172015
CT	740	0.0486586007365
GA	496	0.0326144134666
GC	200	0.013150973172
GG	211	0.0138742766965
GT	296	0.0194634402946
NA	1	6.57548658601e-05
NN	15	0.000986322987901
RA	1	6.57548658601e-05
RT	1	6.57548658601e-05
TA	2231	0.146699105734
TC	722	0.047475013151
TG	429	0.028208837454
TN	1	6.57548658601e-05
TR	1	6.57548658601e-05
TT	2869	0.188650710153
TY	1	6.57548658601e-05
YA	1	6.57548658601e-05
YG	1	6.57548658601e-05