#dinucleotide	frequency
AA	2539546	0.063708223578
AC	2508552	0.0629306937827
AG	2239055	0.0561699676018
AN	482	1.2091674561e-05
AT	1993531	0.0500106391684
CA	3081881	0.0773134898083
CC	2231994	0.0559928320955
CG	2596769	0.0651437461784
CN	754	1.89151921555e-05
CT	2332671	0.0585184618045
GA	2572618	0.0645378830408
GC	2871031	0.0720240093494
GG	1930603	0.0484319983038
GN	758	1.90155380025e-05
GT	2348260	0.0589095346567
NA	555	1.39229862683e-05
NC	728	1.82629441502e-05
NG	771	1.93416620052e-05
NN	1305830	0.0327586543401
NT	480	1.20415016375e-05
TA	1086455	0.0272553117949
TC	2631820	0.066023051749
TG	2956012	0.074155881955
TN	540	1.35466893422e-05
TT	2630442	0.0659884826047