,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,0.032255,0.935491,0.032255,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.147019,0.852981,0.000000,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.082392,0.869092,0.011754,0.022008,0.003000,0.011754
BB,0.000000,0.000000,0.058847,0.058847,0.647051,0.158766,0.017641,0.058847
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.800019,0.141180,0.058802
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.826996,0.147004
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000