,AAA,AA,A,BBB,BB,B,CCC,D
AAA,0.985058,0.014942,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.012441,0.967654,0.019175,0.000346,0.000192,0.000192,0.000000,0.000000
A,0.000000,0.046798,0.925196,0.017851,0.000981,0.008194,0.000000,0.000981
BBB,0.000000,0.000324,0.122103,0.840895,0.015282,0.011434,0.002997,0.006966
BB,0.000000,0.000000,0.007813,0.059788,0.747704,0.087134,0.009682,0.087879
B,0.000000,0.000000,0.000000,0.009755,0.004878,0.688927,0.121575,0.174865
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.017235,0.714467,0.262298
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000