Include an option for the 5 year price history on graphs (vs. 1 year or all time)

When you look at a graph of historic prices, you have the option of seeing prices for the calendar year, 1 year, or the entire recorded history.  Yet most games started rising in value in the last 5 or 6 years, so it makes the graph hard to interpret.  Can we get a 5-year option for the line graph?