,AAA,AA,A,BBB,BB,B,D
AAA,0.999449,0.000000,0.000000,0.000000,0.000000,0.000000,0.000551
AA,0.032230,0.934791,0.032230,0.000000,0.000000,0.000000,0.000748
A,0.000000,0.146789,0.851646,0.000000,0.000000,0.000000,0.001565
BBB,0.000000,0.000000,0.082392,0.870592,0.011754,0.023508,0.011754
BB,0.000000,0.000000,0.058847,0.058847,0.647051,0.176407,0.058847
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.941198,0.058802
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000