,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,0.016612,0.983388,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.076151,0.916687,0.007162,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.151960,0.747671,0.000000,0.097368,0.003000,0.000000
BB,0.000000,0.000000,0.000000,0.088045,0.760897,0.033324,0.007019,0.110714
B,0.000000,0.000000,0.000000,0.000000,0.042016,0.596927,0.105340,0.255717
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.033613,0.432171,0.528216
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000