aa_	count_n
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
A	391
B	0
C	86
D	404
E	434
F	499
G	308
H	189
I	605
J	0
K	913
L	737
M	113
N	678
O	0
P	245
Q	429
R	371
S	519
T	422
U	0
V	410
W	147
X	0
Y	313
Z	0