Zillow: Southern states dominate list
Phoenix, Chicago post double-digit annual home-price declines
All 20 tracked metros see year-over-year declines
Index offers historical price trends down to ZIP code level
Despite Q2 uptick, overall home prices expected to dip further by year's end
Index falls 4% year-over-year in April
CoreLogic: Home-price index down 33.8% from peak
Case-Shiller: year-over-year price declines in 19 of 20 metros
28% of homes with mortgages are underwater
CoreLogic: U.S. home prices fall for 7th straight month in February
Year-over-year index levels fall in 18 of 20 markets
Real estate prices in 11 of 20 markets fall to new lows
CoreLogic index shows price declines accelerating in November
S&P/Case-Shiller 20-city index slides into negative territory
Real estate price index: declines in 15 of 20 metros