aa_	count_n
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	71906
A	28827
B	0
C	5104
D	21206
E	28630
F	23403
G	24641
H	9781
I	30994
J	0
K	37274
L	45466
M	10244
N	24832
O	0
P	14621
Q	16038
R	15699
S	28799
T	18875
U	0
V	24173
W	3270
X	12
Y	16821
Z	0