#dinucleotide	frequency
AA	2636	0.174338624339
AC	582	0.0384920634921
AG	489	0.0323412698413
AT	2456	0.162433862434
CA	676	0.044708994709
CC	280	0.0185185185185
CG	101	0.00667989417989
CT	616	0.0407407407407
GA	536	0.0354497354497
GC	194	0.0128306878307
GG	201	0.0132936507937
GT	310	0.0205026455026
NA	1	6.61375661376e-05
NN	6	0.000396825396825
TA	2314	0.153042328042
TC	617	0.0408068783069
TG	450	0.0297619047619
TN	1	6.61375661376e-05
TT	2654	0.175529100529