,AAA,AA,A,BBB,BB,B,D
AAA,0.999491,0.000000,0.000000,0.000000,0.000000,0.000000,0.000509
AA,0.000000,0.991718,0.007563,0.000000,0.000000,0.000000,0.000719
A,0.000000,0.009274,0.961427,0.027716,0.000000,0.000000,0.001582
BBB,0.000000,0.000000,0.085854,0.858807,0.042994,0.000000,0.012345
BB,0.000000,0.000000,0.052682,0.000000,0.789409,0.105227,0.052682
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.950527,0.049473
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000