set terminal png medium transparent size 600,300
set out 'estate-tax-effective-rate.png'

set title 'Effective Estate Tax Rate vs. Estate Size'
set xlabel 'Estate Size (Millions of $)'
set xrange [0.1:10000]
set log x
set ylabel 'Effective Tax Rate (%)'
set yrange [0:60]

old(x) = x < 2000000 ? 0 : 100*(0.46*x - 920000)/x
new(x) = x < 5000000 ? 0 : x < 10000000 ? 100*(0.15*x - 750000)/x : 100*(0.30*x - 2250000)/x
plot old(x*1000000) title '2006 Law', new(x*1000000) title 'Kyl Proposal'