,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,0.000000,1.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.085133,0.702091,0.127642,0.000000,0.085133,0.000000,0.000000
BBB,0.000000,0.000000,0.067750,0.812098,0.050902,0.066250,0.003000,0.000000
BB,0.000000,0.000000,0.000000,0.125050,0.833222,0.037555,0.004173,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.199946,0.595011,0.105002,0.100041
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.159957,0.583942,0.250101
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000