The overall average price per square foot for both property types tracked rose 14.7% to $1,463 for the second straight year over year gain. With the volatility of average sales size in this small high-end housing market, the price per square foot has been a more reliable price trend indicator. The average size of an Aspen sale increased 18.9% to 3,217 year over year for the third increase in the past four quarters. There was a combined total of 60 condo and…