,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,0.000000,1.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.080891,0.912472,0.000000,0.000000,0.006636,0.000000,0.000000
BBB,0.000000,0.000000,0.056800,0.900004,0.020100,0.000000,0.002996,0.020100
BB,0.000000,0.000000,0.000000,0.000000,0.958177,0.000000,0.004975,0.036848
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.722515,0.127503,0.149983
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.640697,0.333303
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000