OLD BRIDGE, N.J. (3/15/06)—The vacancy rate in retail properties along central New Jersey’s four largest shopping corridors declined to 3.4% during 2005 from 4.1% in 2004, hitting the lowest level in 10 years, according to R.J. Brunelli & Co., Inc. The Old Bridge-based retail real estate brokerage’s 17th annual study of the central New Jersey