#dinucleotide	frequency
AA	2882	0.193578721118
AC	580	0.0389575497045
AG	737	0.0495029554003
AT	1901	0.127686727566
CA	651	0.0437264911338
CC	287	0.0192772702848
CG	142	0.00953788285868
CT	566	0.0380171950564
GA	770	0.0517195056421
GC	199	0.01336646964
GG	317	0.0212923159592
GT	404	0.0271359484148
TA	1797	0.120701235895
TC	580	0.0389575497045
TG	494	0.0331810854379
TT	2581	0.173361096185