#dinucleotide	frequency
AA	2404	0.110691592228
AC	612	0.0281793903674
AG	1306	0.0601344506861
AT	2497	0.114973754489
CA	855	0.0393682659545
CC	421	0.0193848420665
CG	319	0.0146882770052
CT	840	0.038677594622
GA	1167	0.0537342296712
GC	583	0.0268440924579
GG	1280	0.058937287043
GT	1268	0.058384749977
TA	2394	0.110231144673
TC	819	0.0377106547564
TG	1393	0.0641403444148
TT	3560	0.163919329588