Quarter	Number of Permits
1996-01-01	14900
1996-04-01	29700
1996-07-01	30700
1996-10-01	38600
1997-01-01	16400
1997-04-01	31000
1997-07-01	34000
1997-10-01	29900
1998-01-01	18900
1998-04-01	32200
1998-07-01	31600
1998-10-01	44700
1999-01-01	16400
1999-04-01	30300
1999-07-01	37300
1999-10-01	65700
2000-01-01	21600
2000-04-01	32400
2000-07-01	34400
2000-10-01	40800
2001-01-01	17100
2001-04-01	26500
2001-07-01	26900
2001-10-01	57800
2002-01-01	13200
2002-04-01	24700
2002-07-01	26800
2002-10-01	24900
2003-01-01	14800
2003-04-01	27100
2003-07-01	30000
2003-10-01	35600
2004-01-01	19500
2004-04-01	29500
2004-07-01	27500
2004-10-01	23400
2005-01-01	17900
2005-04-01	28200
2005-07-01	29600
2005-10-01	23600
2006-01-01	20600
2006-04-01	33600
2006-07-01	34800
2006-10-01	30100
2007-01-01	30100
2007-04-01	47600
2007-07-01	44600
2007-10-01	37400
2008-01-01	31800
2008-04-01	45300
2008-07-01	42300
2008-10-01	32500
2009-01-01	29800
2009-04-01	38300
2009-07-01	38200
2009-10-01	31000
2010-01-01	27600
2010-04-01	39700
2010-07-01	38400
2010-10-01	30800
2011-01-01	27500
2011-04-01	40400
2011-07-01	37800
2011-10-01	29200
2012-01-01	26600
2012-04-01	35700
2012-07-01	33600
2012-10-01	27100
2013-01-01	22300
2013-04-01	30300
2013-07-01	31400