,AAA,AA,A,BBB,BB,B,D
AAA,0.999486,0.000000,0.000000,0.000000,0.000000,0.000000,0.000514
AA,0.000000,0.954843,0.044391,0.000000,0.000000,0.000000,0.000766
A,0.000000,0.040518,0.944431,0.013471,0.000000,0.000000,0.001580
BBB,0.000000,0.000000,0.108382,0.813100,0.067710,0.000000,0.010808
BB,0.000000,0.000000,0.000000,0.000000,0.849962,0.050049,0.099989
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.894743,0.105257
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000