,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,0.099974,0.849974,0.050052,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.079973,0.880040,0.039987,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.172859,0.785746,0.038399,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.199970,0.650015,0.044959,0.004995,0.100060
B,0.000000,0.000000,0.000000,0.071474,0.000000,0.607096,0.107135,0.214295
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.515052,0.458948
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000