.G1
label left "Winning Time" "(seconds)" left .3
label bot "Kentucky Derby, 1909 to 1988"
bestsofar = 1000 # Greater than first time
year = 09
copy "speedhorse.d" thru {
bullet at year, $1
bestsofar = min(bestsofar, $1)
line from year, bestsofar to year+1, bestsofar
year = year+1
}
.G2