aa_	count_n
0	0
1	35368
2	174901
3	14356
4	24976
5	0
6	0
7	20161
8	0
9	0
A	171
B	0
C	80
D	230
E	416
F	345
G	201
H	85
I	687
J	0
K	579
L	500
M	102
N	507
O	0
P	79
Q	113
R	226
S	412
T	390
U	0
V	359
W	72
X	1
Y	480
Z	0