of falling ill or at the very least dealing with increased anxiety. Overall, it is reported that homeowners who are unable to afford living in their desired locations experience higher instances of poor health. Besides health issues, the unstable housing market has also been shown to increase instances of violence. They subsequently begin to fear that their own homes may be taken from them. Increases in anxiety have at the very least been commonly noted. There is a fear that foreclosures bring about these reactions in people who anticipate the same thing happening to them. An uptick on violent occurrences has also been shown to follow neighborhoods where such uncertainty exists. These trends were reversed during the real estate market correction of 2006–2007. As of August 2007, D.R. Horton's and Pulte Corp's shares had fallen to 1/3 of their respective peak levels as new residential home sales fell. Some of the cities and regions that had experienced the fastest growth during 2000–2005 began to experience high foreclosure rates. It was suggested that the weakness of the housing industry and the loss of the consumption that had been driven by the withdrawal of mortgage equity could lead to a recession, but as of mid-2007 the existence of this recession had not yet been ascertained. In March 2008, Thomson Financial reported that the "Chicago Federal Reserve Bank's National Activity Index for February sent a signal that a recession [had] probably begun". The share prices of Fannie Mae and Freddie Mac plummeted in 2008 as investors worried that they lacked sufficient capital to cover the losses on their $5 trillion portfolio of loans and loan guarantees. On June 16, 2010, it was announced that Fannie Mae and Freddie Mac would be delisted from the New York Stock Exchange; shares now trade on the over-the-counter market. Housing market correction Basing their statements on historic U.S. housing valuation trends, in 2005 and 2006 many economists and business writers predicted market corrections ranging from a few percentage points to 50% or more from peak values in some markets, and although this cooling had not yet affected all areas of the U.S., some warned that it still could, and that the correction would be "nasty" and "severe". Chief economist Mark Zandi of the economic research firm Moody's Economy.com predicted a "crash" of double-digit depreciation in some U.S. cities by 2007–2009. In a paper he presented to a