,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,0.007685,0.984630,0.007685,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.032247,0.957003,0.010749,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.086814,0.910191,0.000000,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.000000,0.857143,0.128571,0.014286,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.850000,0.150000,0.000000
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.974000,0.000000
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000