1.    100  
  2.     99  
  3.     95  
  4.     94  
  5.     94  
  6.     93  
  7.     86  
  8.     86  
  9.     85  
 10.     83  
 11.     81  
 12.     77  
 13.     76  
 14.     74  
 15.     70  
 16.     67  
 17.     54  
 18.     51  
 19.     50  
 20.     47  
 21.     44  

grader> stat exam1
   Statistics for exam1
      High grade: 100.0000
       Low grade: 44.0000
         Average: 76.4762
          Median: 81.0000
         Std Dev: 18.0627