,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,0.000000,0.069290,0.920766,0.000000,0.000000,0.009944,0.000000,0.000000
BBB,0.000000,0.000000,0.053973,0.889058,0.026987,0.000000,0.002996,0.026987
BB,0.000000,0.000000,0.000000,0.000000,0.995025,0.000000,0.004975,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.743762,0.131252,0.124986
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.661535,0.312465
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000