letter	frequency
A	.08167
B	.01492
C	.02780
D	.04253
E	.12702
F	.02288
G	.02022
H	.06094
I	.06973
J	.00153
K	.00747
L	.04025
M	.02517
N	.06749
O	.07507
P	.01929
Q	.00098
R	.05987
S	.06333
T	.09056
U	.02758
V	.01037
W	.02465
X	.00150
Y	.01971
Z	.00074