Denver declined in November in the latest assessment of home appreciation by Standard and Poors and Case-Shiller. Falling from October by 0.5% in the 20-city measure to place it 24.79% above the January 2000 benchmark, the period also marked the 17th consecutive month of decline in the market for the measure and resulted in it posting a decline of 0.2% from November 2010. Nationwide, the measure posted a 1.3% decline from October to bring the 20-city composite measure down 3.7% from the year-ago period.