New York City's status as a rosy exception to the nation's slowing housing market may be starting to come to an end.

The national housing market is sliding further into a decline, with home prices plummeting across the country this year, according to Standard & Poor's S&P/Case-Shiller Home Price Indices, released yesterday. A composite index of 10 cities posted a year-over-year decline of 6.7% — the worst drop in the index's 20-year history. [NY Sun]