Spanish house prices tumbled at their fastest pace on record in the fourth quarter, a sign that a long-running property bust will continue to weigh on Spanish households and banks. House prices fall over 11.2% in the fourth-quarter of 2011-the fastest contraction on record. WSJ's Sara Schaefer Munoz has been looking at the data and analyzes how this affects its efforts to deal with its debt crisis. House prices fell on average by 11.2% in the fourth quarter from the same period a year earlier, well below the 7.4% decline in the third quarter, while prices of used homes was down 13.7% in the period, the country's statistics agency INE said Thursday. Both readings are by far the worst since INE started recording countrywide prices in 2007, the peak year for Spain's decade-long property...