Year	Number of Buildings
1994-01-01	53913.75
1995-01-01	52982.25
1996-01-01	43678.25
1997-01-01	36479.00
1998-01-01	35469.25
1999-01-01	35151.25
2000-01-01	35708.00
2001-01-01	35334.50
2002-01-01	36400.75
2003-01-01	41288.00
2004-01-01	46155.00
2005-01-01	51595.00
2006-01-01	57424.75
2007-01-01	60647.75
2008-01-01	59605.50
2009-01-01	63044.75