,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,0.061444,0.893772,0.030291,0.014493,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.101044,0.861655,0.037302,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.068367,0.846477,0.060342,0.010752,0.003000,0.011062
BB,0.000000,0.000000,0.000000,0.062964,0.847031,0.037988,0.004221,0.047796
B,0.000000,0.000000,0.000000,0.000000,0.160363,0.561351,0.099062,0.179224
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.128291,0.406102,0.459608
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000