,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,0.000000,0.939655,0.060345,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.036379,0.918148,0.036379,0.000000,0.000000,0.000000,0.009095
BBB,0.000000,0.000000,0.066620,0.731903,0.133357,0.065120,0.003000,0.000000
BB,0.000000,0.000000,0.000000,0.000000,0.944444,0.050000,0.005556,0.000000
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.850000,0.150000,0.000000
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.974000,0.000000
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000