*** PRISON CENSUSES *** Creating first the year-by-year census *** Then merging them up. INCLUDE FILE = 'D:\TechnicalAppendix\CorrectionalCensuses\Prison1984.sps' . INCLUDE FILE = 'D:\TechnicalAppendix\CorrectionalCensuses\Prison1990.sps' . INCLUDE FILE = 'D:\TechnicalAppendix\CorrectionalCensuses\Prison1995.sps' . INCLUDE FILE = 'D:\TechnicalAppendix\CorrectionalCensuses\Merging_prisons.sps' .