,AAA,AA,A,BBB,BB,B,D
AAA,0.999623,0.000000,0.000000,0.000000,0.000000,0.000000,0.000377
AA,0.085783,0.799804,0.113638,0.000000,0.000000,0.000000,0.000775
A,0.000000,0.026005,0.908793,0.049032,0.000000,0.014547,0.001623
BBB,0.000000,0.000000,0.077388,0.891533,0.020185,0.000000,0.010894
BB,0.000000,0.000000,0.011905,0.073811,0.735706,0.128565,0.050014
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.913226,0.086774
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000