#dinucleotide	frequency
AA	1620	0.0920977828312
AC	1555	0.0884025014213
AG	891	0.0506537805571
AN	2	0.000113700966458
AT	1236	0.0702671972712
CA	1615	0.091813530415
CC	2017	0.114667424673
CG	576	0.03274587834
CN	1	5.68504832291e-05
CT	1481	0.0841955656623
GA	815	0.0463331438317
GC	834	0.0474133030131
GG	488	0.0277430358158
GT	435	0.0247299602047
NA	2	0.000113700966458
NC	1	5.68504832291e-05
TA	1251	0.0711199545196
TC	1283	0.0729391699829
TG	617	0.0350767481524
TT	870	0.0494599204093