#dinucleotide	frequency
AA	1929	0.114317885504
AC	1526	0.0904349887401
AG	810	0.048002844613
AT	1532	0.0907905653668
CA	1470	0.087116273557
CC	1319	0.0781675951167
CG	335	0.0198530283276
CT	1271	0.0753229821026
GA	692	0.04100983762
GC	567	0.0336019912291
GG	474	0.0280905535143
GT	456	0.027023823634
TA	1707	0.101161550314
TC	983	0.058255304018
TG	569	0.0337205167714
TT	1234	0.0731302595709