.G1 ticks bot out from 10 to 70 by 10 "" ticks bot out at 0 "1900", 40 "1940", 80 "1980" label bot "World Record One Mile Run" label left "Time" "(seconds)" left .4 lastyear=99; lastrec=0 copy "speedman.d" thru X lastyear=min($1,lastyear) lastrec=max($2,lastrec) line from lastyear,lastrec to $1,lastrec lastyear=$1; lastrec=$2 X line from lastyear,lastrec to 84,lastrec .G2