Market Statistics Reports View the latest reports produced by Trend, the MLS (multiple listing) service for the Philadelphia metropolitan region. Each report lists number of homes sold, days on the market and average discount from list price. Compare these numbers to past years as well-- by county or zip. Economic and Market Watch Report – Sales statistics for your area grouped by county by zip code. Single Family Home Year to Date Market Snapshot – Sales statistics for your area by county compared to last three years. Delaware County Market History – Sales statistics for Delaware County compared to last eight years. Chester County Market History – Sales statistics for Chester County compared to last eight years. Montgomery County Market History – Sales statistics for Montgomery County compared to last eight years.