#dinucleotide	frequency
AA	1994688	0.0725007534715
AC	1523253	0.0553655460041
AG	1739268	0.063217024662
AN	74	2.68967164634e-06
AT	2017008	0.0733120165951
CA	1895851	0.0689083335187
CC	1511195	0.0549272749134
CG	1319217	0.0479494670307
CN	36	1.30848890903e-06
CT	1743195	0.0633597589938
GA	1990068	0.0723328307282
GC	1437491	0.0522483619536
GG	1510257	0.0548931815079
GN	43	1.56291730801e-06
GT	1526290	0.0554759315823
NA	90	3.27122227257e-06
NC	47	1.70830496457e-06
NG	40	1.45387656559e-06
NN	18205	0.000661695571914
NT	60	2.18081484838e-06
TA	1393629	0.0506541136056
TC	1997501	0.072602997341
TG	1895366	0.0688907052653
TN	84	3.05314078774e-06
TT	1999696	0.0726827788175