,AAA,AA,A,BBB,BB,B,D
AAA,0.999475,0.000000,0.000000,0.000000,0.000000,0.000000,0.000525
AA,0.000000,0.999268,0.000000,0.000000,0.000000,0.000000,0.000732
A,0.000000,0.039896,0.891954,0.066530,0.000000,0.000000,0.001619
BBB,0.000000,0.000000,0.115338,0.788466,0.076932,0.000000,0.019263
BB,0.000000,0.000000,0.000000,0.000000,0.913752,0.065268,0.020980
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.952192,0.047808
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000