aa_	count_n
0	0
1	51385
2	13123
3	1016
4	32377
5	0
6	0
7	0
8	0
9	0
A	109
B	0
C	24
D	20
E	24
F	94
G	108
H	18
I	116
J	0
K	34
L	166
M	25
N	43
O	0
P	54
Q	28
R	4
S	116
T	75
U	0
V	103
W	15
X	0
Y	31
Z	0