,AAA,AA,A,BBB,BB,B,CCC,D
AAA,0.982722,0.017278,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.000000,0.935092,0.064908,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.042667,0.911635,0.039382,0.000000,0.000000,0.000000,0.006316
BBB,0.000000,0.000000,0.049172,0.754148,0.095230,0.081005,0.003000,0.017445
BB,0.000000,0.000000,0.000000,0.000000,0.889822,0.044140,0.004904,0.061134
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.809516,0.142856,0.047629
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.854929,0.119071
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000