#Data files pasted into SVG output in comment
set terminal svg enhanced size 800 500 fname "sans"
set output "unionchart.svg"
set xlabel "Date" offset 0,-1 font "sans,18"
set ylabel "Percentage" font "sans,18"
set key font "sans,16"
set key spacing "1.5"
set yrange [0:100]
set grid ytics
set grid xtics
seconds_per_year=365*24*60*60
set xtics 10*seconds_per_year 
set xtics format "%Y"
set bmargin 5
#set tmargin 10
set lmargin 10
#set rmargin 10
set xdata time
set timefmt "%d/%m/%Y"
set datafile separator ","
plot "./UnionsupportRev.txt" using 1:2 w lines lw 2 lt 1 title "Public support for unions", \
     "./UnionmembershipRev.txt" using 1:2 w lines lw 2 lt 2 title "Union membership"