#dinucleotide	frequency
AA	3521955	0.0720587117825
AC	2633112	0.0538731070383
AG	3250016	0.0664948774849
AN	80	1.63678892621e-06
AT	3336006	0.068254220982
CA	3398508	0.0695330032503
CC	2614852	0.0534995099659
CG	2309665	0.0472554261906
CN	54	1.10483252519e-06
CT	3251440	0.0665240123278
GA	3611465	0.0738900739923
GC	2714175	0.0555316447973
GG	2605926	0.0533168852414
GN	47	9.61613494146e-07
GT	2628533	0.0537794213321
NA	88	1.80046781883e-06
NC	49	1.0025332173e-06
NG	61	1.24805155623e-06
NN	256858	0.00525527912509
NT	76	1.5549494799e-06
TA	2209146	0.0451988213647
TC	3612334	0.073907853612
TG	3394471	0.0694504067891
TN	93	1.90276712671e-06
TT	3527176	0.0721655327198