,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,0.000000,0.980288,0.019712,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.031368,0.950070,0.018561,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.000000,0.981861,0.015143,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.000000,0.995025,0.000000,0.004975,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.807501,0.142500,0.049999
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.849003,0.124997
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000