WASHINGTON (MarketWatch) - Sales of existing homes rose unexpectedly in March by 0.3% to a seasonally adjusted annual rate of 6.92 million, the National Association of Realtors said Tuesday. After five months of declines, existing home sales have risen two months in row, prompting David Lereah, chief economist for the realtors, to say, “This is additional evidence that we’re experiencing a soft landing.” Economists expected sales to fall to a 6.70 million pace in March. The number of homes for sale rose 7% to a record 3.194 million, representing a 5.5-month supply at the March sales pace, the largest supply since July 1998. Median prices are up 7.4% in the past 12 months to $218,000, the smallest price gain since January 2004.