BEGIN		{
		yearsum = 0 ; costsum = 0
		newcostsum = 0 ; newcount = 0
		}
		{
		yearsum += $3
		costsum += $5
		}
$3 > 2000 {newcostsum += $5 ; newcount ++}
END		{
		printf "Average age of cars is %4.1f years\n",\
			2006 - (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
		}
