#dinucleotide	frequency
AA	2506	0.136025620149
AC	1218	0.0661130109103
AG	722	0.0391901427563
AT	1973	0.107094392878
CA	996	0.0540628562123
CC	909	0.0493404982902
CG	251	0.0136242740053
CT	1393	0.0756120067307
GA	559	0.0303425066493
GC	420	0.0227975899691
GG	329	0.0178581121424
GT	646	0.0350648645715
TA	2358	0.127992183683
TC	1002	0.054388536069
TG	652	0.0353905444282
TT	2489	0.135102860555