95 - 100  A+    3   III
 90 - 95   A     6    V    I
 85 - 90   A-    6    V    I
 80 - 85   B+    1    I
 75 - 80   B     1    I
 70 - 75   B-    7    V    II
 65 - 70   C+    4   IV
 60 - 65   C     3   III
 55 - 60   C-   12    V    V    II
 50 - 55   D+    2    II
 45 - 50   D     3   III
 40 - 45   D-    0    
    < 45   F     2    II