aa_	count_n
0	0
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
A	16117
B	31
C	3185
D	11539
E	11905
F	7656
G	15024
H	4242
I	10718
J	0
K	11337
L	16034
M	4200
N	8897
O	0
P	8959
Q	7170
R	9203
S	11509
T	11244
U	0
V	13449
W	2753
X	120
Y	7007
Z	14