Purchase-Only Indexes Volatility (Estimated using Sales Price Data)http://fhfa.gov/Default.aspx?Page=87Sat, 19 Apr 2014 04:42:45 GMT720State Volatility Parameters through 2013Q4 [TXT]http://fhfa.gov/webfiles/26091/vol_13q4_sales_S2.txtState Volatility Parameters through 2013Q4 [TXT]Tue, 25 Feb 2014 14:00:00 GMT24204State Volatility Parameters through 2013Q4 [XLS]http://fhfa.gov/webfiles/26092/vol_13q4_sales_S2.xlsState Volatility Parameters through 2013Q4 [XLS]Tue, 25 Feb 2014 14:00:00 GMT24205