,AAA,AA,A,BBB,BB,B,D
AAA,0.999445,0.000000,0.000000,0.000000,0.000000,0.000000,0.000555
AA,0.035680,0.927810,0.035680,0.000000,0.000000,0.000000,0.000829
A,0.000000,0.083166,0.915060,0.000000,0.000000,0.000000,0.001774
BBB,0.000000,0.000000,0.082449,0.907477,0.000000,0.000000,0.010075
BB,0.000000,0.000000,0.000000,0.150487,0.827744,0.000000,0.021770
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.851877,0.148123
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000