#dinucleotide	frequency
AA	1799	0.0964559541043
AC	666	0.035708541097
AG	1328	0.0712026164817
AN	1	5.36164280736e-05
AT	1428	0.076564259289
CA	659	0.0353332261005
CC	545	0.0292209533001
CG	410	0.0219827355102
CN	2	0.000107232856147
CT	1146	0.0614444265723
GA	984	0.0527585652244
GC	736	0.0394616910621
GG	1266	0.0678783979411
GN	1	5.36164280736e-05
GT	1421	0.0761889442925
NA	3	0.000160849284221
NC	2	0.000107232856147
NG	2	0.000107232856147
NT	2	0.000107232856147
TA	1776	0.0952227762586
TC	813	0.0435901560238
TG	1402	0.0751702321591
TN	5	0.000268082140368
TT	2254	0.120851428878