,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,0.000000,0.044629,0.892891,0.053554,0.000000,0.000000,0.000000,0.008926
BBB,0.000000,0.000000,0.044413,0.886024,0.066567,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.000000,0.995025,0.000000,0.004975,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.377791,0.066669,0.555540
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.140691,0.833309
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000