,AAA,AA,A,BBB,BB,B,D
AAA,0.999482,0.000000,0.000000,0.000000,0.000000,0.000000,0.000518
AA,0.000000,0.976750,0.022510,0.000000,0.000000,0.000000,0.000740
A,0.000000,0.019207,0.979135,0.000000,0.000000,0.000000,0.001658
BBB,0.000000,0.000000,0.082450,0.906468,0.000000,0.000000,0.011082
BB,0.000000,0.000000,0.000000,0.000000,0.812465,0.156261,0.031275
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.941209,0.058791
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000