,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,0.000000,0.011122,0.944390,0.044488,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.041599,0.955406,0.000000,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.000000,0.941123,0.052989,0.005888,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.789286,0.139286,0.071429
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.795429,0.178571
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000