,AAA,AA,A,BBB,BB,B,D
AAA,0.999485,0.000000,0.000000,0.000000,0.000000,0.000000,0.000515
AA,0.000000,0.952749,0.046499,0.000000,0.000000,0.000000,0.000752
A,0.000000,0.017818,0.962544,0.017818,0.000000,0.000000,0.001820
BBB,0.000000,0.000000,0.134950,0.824793,0.029964,0.000000,0.010293
BB,0.000000,0.000000,0.000000,0.000000,0.832323,0.138690,0.028986
B,0.000000,0.000000,0.061724,0.000000,0.000000,0.863781,0.074495
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000