#dinucleotide	frequency
AA	2437	0.159322698745
AC	811	0.0530203974895
AG	709	0.0463519874477
AT	1785	0.116697175732
CA	764	0.0499476987448
CC	695	0.0454367154812
CG	272	0.0177824267782
CT	830	0.0542625523013
GA	611	0.039945083682
GC	366	0.0239278242678
GG	410	0.0268043933054
GT	504	0.032949790795
TA	1930	0.126176778243
TC	689	0.0450444560669
TG	500	0.0326882845188
TT	1983	0.129641736402