,AAA,AA,A,BBB,BB,B,D
AAA,0.999457,0.000000,0.000000,0.000000,0.000000,0.000000,0.000543
AA,0.027039,0.960219,0.011893,0.000000,0.000000,0.000000,0.000849
A,0.000000,0.080582,0.899691,0.017936,0.000000,0.000000,0.001791
BBB,0.000000,0.000000,0.112753,0.877154,0.000000,0.000000,0.010093
BB,0.000000,0.000000,0.000000,0.170972,0.788720,0.016363,0.023944
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.834730,0.165270
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000