,AAA,AA,A,BBB,BB,B,D
AAA,0.969200,0.030800,0.000000,0.000000,0.000000,0.000000,0.000000
AA,0.012999,0.979776,0.006500,0.000000,0.000000,0.000000,0.000726
A,0.000000,0.000000,0.989762,0.000000,0.000000,0.008586,0.001653
BBB,0.000000,0.000000,0.054748,0.929532,0.000000,0.000000,0.015720
BB,0.000000,0.000000,0.000000,0.000000,0.878839,0.060580,0.060580
B,0.000000,0.000000,0.000000,0.000000,0.000000,0.898453,0.101547
D,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,1.000000