Year Number of Buildings 1994-01-01 11288.50 1995-01-01 12377.25 1996-01-01 10993.50 1997-01-01 8945.00 1998-01-01 8264.00 1999-01-01 8113.25 2000-01-01 8128.25 2001-01-01 8014.50 2002-01-01 7825.50 2003-01-01 8218.25 2004-01-01 9166.75 2005-01-01 9550.75 2006-01-01 10383.50 2007-01-01 10913.75 2008-01-01 10254.00 2009-01-01 9666.75 2010-01-01 10254.50 2011-01-01 11572.00 2012-01-01 10387.75