aa_	count_n
0	0
1	21972
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
A	2526
B	0
C	193
D	2185
E	2806
F	3211
G	1757
H	430
I	4070
J	0
K	4838
L	5960
M	348
N	3871
O	0
P	1282
Q	2563
R	1174
S	3685
T	2630
U	0
V	2901
W	358
X	0
Y	1238
Z	0