,AAA,AA,A,BBB,BB,B,D
AAA,0.963804,0.035661,0.000000,0.000000,0.000000,0.000000,0.000535
AA,0.000000,0.932177,0.067099,0.000000,0.000000,0.000000,0.000724
A,0.000000,0.049476,0.901049,0.039623,0.000000,0.000000,0.009853
BBB,0.000000,0.000000,0.057122,0.771511,0.057122,0.085683,0.028561
BB,0.000000,0.000000,0.000000,0.000000,0.875014,0.041624,0.083361
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.928610,0.071390
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000