set format x "%d/%m/%y"
set xtics rotate
set grid
set terminal png
set xdata time
set ylabel "Active tickets"
set xlabel "\nDate"
set title "Active tickets by component over time for 2002 - now"
set timefmt "%Y-%m-%d"
set output "ticket-component-all.png"
plot [ ] [0:] "ticket-component-all.txt" using 1:2 ti "ports" with lines, \
	"ticket-component-all.txt" using 1:3 ti "base" with lines, \
	"ticket-component-all.txt" using 1:($2+$3) ti "Sum" with lines