AAA
AA+
AA
AA-
A+
A
A-
BBB+
BBB
BBB-
BB+
BB
BB-
B+
B
B-
CCC+
CCC
CCC-
CC

27  A
26  A+
28  A-
24  AA
23  AA+
25  AA-
22  AAA
36  B
35  B+
37  B-
33  BB
32  BB+
34  BB-
30  BBB
29  BBB+
31  BBB-
42  C
41  CC
39  CCC
38  CCC+
40  CCC-