#dinucleotide	frequency
AA	2598	0.160192378838
AC	1084	0.0668393143421
AG	593	0.0365643112591
AT	2292	0.14132445431
CA	1028	0.0633863608336
CC	632	0.0389690467382
CG	149	0.00918732272783
CT	948	0.0584535701073
GA	524	0.0323097792576
GC	271	0.0167098285855
GG	219	0.0135035146134
GT	372	0.0229374768775
TA	2416	0.148970279936
TC	770	0.0474781107412
TG	425	0.0262054507338
TT	1897	0.116968800099