,AAA,AA,A,BBB,BB,B,CCC,D
AAA,1.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.085849,0.800426,0.113725,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.026047,0.910271,0.049112,0.000000,0.014570,0.000000,0.000000
BBB,0.000000,0.000000,0.078127,0.898498,0.020379,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.011905,0.073811,0.735706,0.115708,0.012856,0.050014
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.776242,0.136984,0.086774
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.732848,0.241152
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000