,AAA,AA,A,BBB,BB,B,D
AAA,0.999467,0.000000,0.000000,0.000000,0.000000,0.000000,0.000533
AA,0.038485,0.960650,0.000000,0.000000,0.000000,0.000000,0.000865
A,0.000000,0.124805,0.873396,0.000000,0.000000,0.000000,0.001799
BBB,0.000000,0.000000,0.034049,0.903182,0.051074,0.000000,0.011696
BB,0.000000,0.000000,0.000000,0.087637,0.719335,0.122821,0.070207
B,0.000000,0.000000,0.000000,0.000000,0.117606,0.705916,0.176479
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000