BEGIN  { 
  yearsum = 0; costsum = 0 
  newcostsum = 0; newcont = 0; 
  } 
  { 
  yearsum += $3 
  costsum += $5 
  } 
$3 > 80  {newcostsum += $5; newcount++} 
END  { 
  printf "Average age of cars is %3.1f years \n", \
        88 - (yearsum/NR) 
  printf "Average cost of cars is $%7.2f \n", \
        costsum/NR 
  printf "Average cost of newer cars is $%7.2f \n", \
        newcostsum/newcount 
  }