#dinucleotide	frequency
AA	139631	0.0228296347236
AC	275704	0.0450775373078
AG	299989	0.0490481289333
AT	213032	0.034830680468
CA	304530	0.0497905813348
CC	636891	0.104131524437
CG	886854	0.145000414472
CT	299789	0.0490154289817
GA	416939	0.0681694256433
GC	798385	0.130535754372
GG	639996	0.104639191186
GT	275859	0.0451028797703
TA	67251	0.0109955222321
TC	417070	0.0681908441116
TG	304355	0.0497619688772
TT	139942	0.0228804831483