aa_	count_n
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	48941
A	35696
B	1
C	4991
D	23448
E	29797
F	20611
G	29665
H	9918
I	31722
J	0
K	29047
L	46008
M	11423
N	22864
O	0
P	17489
Q	21458
R	21105
S	26340
T	23896
U	0
V	30358
W	5403
X	35
Y	15063
Z	0