aa_	count_n
0	0
1	92637
2	211352
3	60686
4	0
5	0
6	0
7	0
8	0
9	0
A	3698
B	0
C	525
D	2464
E	2970
F	2209
G	3127
H	1144
I	2624
J	0
K	2750
L	4861
M	923
N	2491
O	0
P	3155
Q	2996
R	3358
S	3511
T	2877
U	0
V	2815
W	1091
X	0
Y	1489
Z	0