,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,0.014493,0.971014,0.014493,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.122075,0.817172,0.047406,0.013347,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.057296,0.883453,0.056255,0.000000,0.002996,0.000000
BB,0.000000,0.000000,0.000000,0.075517,0.858165,0.028252,0.004798,0.033268
B,0.000000,0.000000,0.000000,0.000000,0.115489,0.671687,0.118533,0.094291
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.092391,0.622554,0.279054
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000