aa_	count_n
0	0
1	179670
2	692989
3	0
4	0
5	0
6	0
7	0
8	0
9	0
A	11453
B	0
C	4153
D	2270
E	2466
F	13592
G	10778
H	2350
I	15035
J	0
K	3606
L	20125
M	4959
N	4400
O	0
P	5875
Q	3115
R	2603
S	12167
T	9593
U	0
V	12629
W	3440
X	0
Y	6556
Z	0