# set terminal svg size 600,400 dynamic enhanced fname 'arial'  fsize 11 mousing name "histograms_4" butt solid 
# set output 'histograms.4.svg'
set boxwidth 0.75 absolute
set style fill   solid 1.00 border lt -1
set key outside right top vertical Left reverse noenhanced autotitle columnhead nobox
set key invert samplen 4 spacing 1 width 0 height 0 
set style histogram rowstacked title textcolor lt -1
set datafile missing '-'
set style data histograms
set xtics border in scale 0,0 nomirror rotate by -45  autojustify
set xtics  norangelimit
set xtics   ()
set title "US immigration from Europe by decade\nPlot as stacked histogram" 
set yrange [ 0.00000 : 7.00000e+06 ] noreverse nowriteback
x = 0.0
i = 22
plot 'immigration.dat' using 2:xtic(1), for [i=3:22] '' using i