,AAA,AA,A,BBB,BB,B,D
AAA,0.999481,0.000000,0.000000,0.000000,0.000000,0.000000,0.000519
AA,0.000000,0.983435,0.015823,0.000000,0.000000,0.000000,0.000742
A,0.000000,0.010048,0.968144,0.020203,0.000000,0.000000,0.001605
BBB,0.000000,0.000000,0.084814,0.848674,0.056542,0.000000,0.009969
BB,0.000000,0.000000,0.000000,0.000000,0.789500,0.157900,0.052600
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.846214,0.153786
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000