,AAA,AA,A,BBB,BB,B,CCC,D
AAA,0.982100,0.017900,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.000000,0.992294,0.007706,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.021072,0.968392,0.010536,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.047548,0.901909,0.047548,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.000000,0.884480,0.000000,0.004975,0.110545
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.765031,0.135005,0.099964
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.724090,0.249910
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000