NOMBRE DE DOCUMENTS PAR INITIALE
A = 2215
B = 3558
C = 4073
D = 943
E = 1033
F = 1285
G = 1326
H = 985
I = 271
J = 309
K = 174
L = 4396
M = 3325
N = 890
O = 584
P = 1945
Q = 151
R = 1477
S = 5493
T = 1151
U = 158
V = 2203
W = 423
X = 12
Y = 58
Z = 46
TOTAL = 38484