#dinucleotide	frequency
AA	3020485	0.163054456734
AC	679772	0.0366960452256
AG	623625	0.0336650688816
AN	69	3.72481820458e-06
AT	2852122	0.153965738366
CA	920815	0.0497082387688
CC	306635	0.0165530381183
CG	187303	0.0101111539735
CN	14	7.55760215422e-07
CT	627560	0.033877491485
GA	752084	0.040599654704
GC	303458	0.0163815345322
GG	299175	0.0161503258892
GN	15	8.09743087952e-07
GT	672608	0.0363093119267
NA	63	3.4009209694e-06
NC	20	1.0796574506e-06
NG	19	1.02567457807e-06
NN	126102	0.0068073481918
NT	55	2.96905798916e-06
TA	2482625	0.134019228915
TC	752439	0.0406188186237
TG	917222	0.0495142783078
TN	59	3.18498947928e-06
TT	3000050	0.161951316734