aa_	count_n
0	0
1	25300
2	0
3	21836
4	0
5	0
6	0
7	0
8	0
9	0
A	12096
B	0
C	1189
D	10217
E	11716
F	9966
G	9716
H	3571
I	11619
J	0
K	17803
L	18784
M	2850
N	12725
O	0
P	6695
Q	11092
R	6977
S	12347
T	11446
U	0
V	11622
W	2166
X	0
Y	6172
Z	0
x	1