,AAA,AA,A,BBB,BB,B,D
AAA,0.999476,0.000000,0.000000,0.000000,0.000000,0.000000,0.000524
AA,0.000000,0.999272,0.000000,0.000000,0.000000,0.000000,0.000728
A,0.000000,0.098590,0.887521,0.012297,0.000000,0.000000,0.001592
BBB,0.000000,0.000000,0.053450,0.854553,0.000000,0.080110,0.011888
BB,0.000000,0.000000,0.000000,0.000000,0.533294,0.333382,0.133324
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.878767,0.121233
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000