#dinucleotide	frequency
AA	1849	0.107425052289
AC	1641	0.0953404601441
AG	794	0.0461306065536
AT	1396	0.0811062049733
CA	1627	0.0945270741343
CC	1485	0.0862770160353
CG	413	0.0239948872879
CT	1362	0.0791308389496
GA	641	0.0372414594469
GC	672	0.0390425284685
GG	499	0.0289914013479
GT	478	0.0277713223333
TA	1563	0.0908087380897
TC	1089	0.0632698117592
TG	583	0.0338717174065
TT	1120	0.0650708807809