aa_	count_n
0	0
1	23164
2	58877
3	0
4	0
5	0
6	0
7	0
8	0
9	0
A	862
B	0
C	135
D	162
E	146
F	1054
G	847
H	102
I	1096
J	0
K	314
L	1503
M	247
N	390
O	0
P	363
Q	258
R	182
S	773
T	707
U	0
V	978
W	244
X	0
Y	360
Z	0