,AAA,AA,A,BBB,BB,B,D
AAA,0.980998,0.018465,0.000000,0.000000,0.000000,0.000000,0.000537
AA,0.000000,0.921189,0.078081,0.000000,0.000000,0.000000,0.000731
A,0.000000,0.036987,0.896593,0.046234,0.018493,0.000000,0.001693
BBB,0.000000,0.000000,0.000000,0.846730,0.047019,0.094037,0.012215
BB,0.000000,0.000000,0.000000,0.000000,0.800000,0.066667,0.133333
B,0.000000,0.000000,0.000000,0.000000,0.100072,0.799856,0.100072
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000