#dinucleotide	frequency
AA	1487	0.107543212555
AC	279	0.0201779127793
AG	738	0.0533738338034
AN	1	7.23222680263e-05
AT	1725	0.124755912345
CA	339	0.0245172488609
CC	127	0.00918492803934
CG	115	0.00831706082303
CN	1	7.23222680263e-05
CT	358	0.0258913719534
GA	526	0.0380415129818
GC	188	0.0135965863889
GG	544	0.0393433138063
GT	1037	0.0749981919433
NA	1	7.23222680263e-05
NN	1	7.23222680263e-05
NT	2	0.000144644536053
TA	1876	0.135676574817
TC	346	0.0250235047371
TG	898	0.0649453966876
TN	1	7.23222680263e-05
TT	3237	0.234107181601