,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,0.000000,0.954561,0.045439,0.000000,0.000000,0.000000,0.000000,0.000000
A,0.000000,0.013904,0.930588,0.055508,0.000000,0.000000,0.000000,0.000000
BBB,0.000000,0.000000,0.078299,0.761979,0.137087,0.000000,0.002996,0.019639
BB,0.000000,0.000000,0.000000,0.000000,0.733349,0.119993,0.013333,0.133325
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.791410,0.139661,0.068929
CCC,0.000000,0.000000,0.001000,0.002000,0.003000,0.020000,0.801677,0.172323
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000