What happened in Western Springs in 2004,2005 and 2006 in the first 1/3 of the year?

2004 had 55 sales with the cheapest being $225,000 and the most expensive $1,130,000 35 under 500 and 20 over 500 2005 had 43 sales with the cheapest being $189,900 and the highest $1,915,000 22 under 500 and 21 over 500 2006 had 40 sales with the cheapest being $216,000 and the highest being $1,416,000 19 under 500 and 21 over 500