Home prices posted record drop of 15.3% in April over the same month last year in the S&P/Case-Shiller 20-city Home Price Index released last Tuesday.

The narrower 10-city index was down 16.3% year-over-year and 1.6% for the month. It was the biggest decline in more than two decades.

The S&P/Case-Shiller 20-city index is based on data going back 19 years, while the 10-city index is 21 years old.

Meanwhile, a report from the Office of Federal Housing Enterprise Oversight said U.S. home prices fell 4.6 percent in April from the same month last year, when the index peaked. That marked the biggest decline ever in the agency’s monthly index which dates back to January 1991.

The S/P Case-Shiller index tracks the sale prices of the same homes over the years while OFHEO's index only tracks sales of homes with mortgages insured by Freddie Mac and Fannie Mae. These loans were for $417,000 or less, until Fannie and Freddie's loan limits were raised in early March.

While the government report has shown nationwide price declines, the Case-Shiller index has shown bigger declines as it focuses on larger cities where prices upsurge was bigger during the boom years.

Every city surveyed posted year-over-year price drops, the month-to-month pace of declines did slow in many cities but eight metro areas actually posted gains from March to April.

The report also showed prices in eight metro areas increased in April from March. Like Cleveland posted the biggest increase in prices by 2.9%. Charlotte, N.C. and Dallas posted gains for the second straight month with 0.2% and 1.1% in April respectively.