,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,0.000000,0.285700,0.571400,0.142900,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.000000,0.541681,0.458319,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.000000,0.720695,0.222195,0.054110,0.003000,0.000000
BB,0.000000,0.000000,0.000000,0.047639,0.333333,0.342875,0.038097,0.238056
B,0.000000,0.000000,0.000000,0.000000,0.133325,0.510020,0.090004,0.266651
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.106660,0.487364,0.399976
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000