The latest figures from the Standard & Poor’s/Case-Shiller 20-city index paint a grim picture of the Twin Cities’ housing market. Those figures reveal a 3.7% drop in prices from February to March of 2011 and a 10% drop in prices in the last year, both of which were the highest of the 20 cities covered by the index. An AP release on the figures notes that Minneapolis is among 12 of the 20 cities covered by the index where home prices are near four year lows.