,AAA,AA,A,BBB,BB,B,CCC,D
AAA,1.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.035710,0.928580,0.035710,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.083314,0.916686,0.000000,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.083163,0.913842,0.000000,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.153070,0.841955,0.000000,0.004975,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.724096,0.127782,0.148123
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.603693,0.370307
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000