set terminal png
set output "aports.png"
set boxwidth 0.75 absolute
set style fill solid 1.00 border -1
set style histogram rowstacked
set style data histograms
set key left top
set grid
set xtics 1000 nomirror
set ytics 100 nomirror
set mxtics 2
set mytics 2
set ytics 500
set yrange [0:5700]
set ylabel "Total packages"
set xlabel "Releases"

plot 'releases.dat' using 3 t "normal", \
    '' using 4 t "dev", \
    '' using 5 t "doc", \
    '' using 6:xtic(1) t "libs"