#dinucleotide	frequency
AA	2407	0.154393842207
AC	982	0.0629890955741
AG	440	0.0282232200128
AT	1929	0.123733162284
CA	880	0.0564464400257
CC	1143	0.0733162283515
CG	192	0.0123155869147
CT	1215	0.0779345734445
CY	1	6.41436818473e-05
GA	436	0.0279666452854
GC	331	0.0212315586915
GG	289	0.0185375240539
GR	1	6.41436818473e-05
GT	260	0.0166773572803
RG	1	6.41436818473e-05
TA	2033	0.130404105196
TC	975	0.0625400898012
TG	395	0.0253367543297
TT	1677	0.107568954458
TW	1	6.41436818473e-05
WT	1	6.41436818473e-05
YA	1	6.41436818473e-05