100 **
 98 *
 96 *
 94 *
 92 **
 90 
Certainly A grades above this point

 88 *
 86 **
 84 *
 82 *
 80 *
Certainly B grades from here upwards

 78 
 76 *
 74 ***
 72 **
 70 **
 68 *
 66 ****
 64 ****
 62 ***
 60 **
 58 *
From here up certainly C or better

 56 
 54 *
 52 *
 50 **
 48 *
 46 *
 44 
 42 **
 40 **
 38
 36 **
 34 
 32 
Above here to the 56 line would be questionable and would
  probably depend on the rest of the grades

Below here would not be a C or better
 30 
 28 *
 26 *
 24 *
 22 
 20 
 18 **
 16 **
 14 
 12 *
 10 * 
 08 * 
 06 *
 04 
 02 
 00 ***