NOMBRE DE DOCUMENTS PAR INITIALE
A = 2219
B = 3571
C = 4092
D = 950
E = 1040
F = 1289
G = 1327
H = 988
I = 273
J = 312
K = 174
L = 4420
M = 3342
N = 891
O = 587
P = 1951
Q = 154
R = 1481
S = 5518
T = 1153
U = 158
V = 2206
W = 425
X = 12
Y = 58
Z = 46
TOTAL = 38637