aa_	count_n
0	0
1	35368
2	174901
3	14356
4	0
5	0
6	0
7	0
8	0
9	0
A	1072
B	0
C	380
D	1226
E	1874
F	1067
G	1442
H	460
I	2170
J	0
K	2599
L	2011
M	789
N	1300
O	0
P	901
Q	514
R	1264
S	1155
T	1014
U	0
V	1553
W	299
X	4
Y	1126
Z	0