,AAA,AA,A,BBB,BB,B,D
AAA,0.983300,0.016700,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.000000,0.999259,0.000000,0.000000,0.000000,0.000000,0.000741
A,0.000000,0.020325,0.947474,0.030595,0.000000,0.000000,0.001606
BBB,0.000000,0.000000,0.047152,0.895209,0.047152,0.000000,0.010487
BB,0.000000,0.000000,0.000000,0.000000,0.880236,0.097758,0.022005
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.875044,0.124956
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000