Income Property; Trend for the Last Decade

I found myself doing a little research for various reasons on how income property faired over the past decade so I thought I would share my results with you.  Keep in mind that we are talking for the most part here multiple unit housing, rather than commercial income property.  The Graph below shows the Average cost per unit sold for each year throughout the last decade. You can see where the values tanked down in 08' but are now on a steady climb once again.  Income property should be a good investment now as the values have dropped and rents are rising.