aa_	count_n
0	0
1	0
2	0
3	0
4	9430
5	0
6	0
7	0
8	0
9	0
A	15461
B	19
C	2699
D	11000
E	11324
F	7312
G	14290
H	4033
I	10275
J	0
K	10690
L	15378
M	3982
N	8461
O	0
P	8535
Q	6809
R	8710
S	10935
T	10711
U	0
V	12866
W	2608
X	107
Y	6670
Z	8