Buying your own home is often mentioned as "the best investment you can make." In 1964, the average home sale price was $19,600. By 2009, the average home sale price had risen to $272.900. What was the average annual rate of change in the price of houses over this 45 year time period? 10.52% per year 12.16% per year 6.03% per year 3.74% per year