Quarter	Percentage of GDP
1996-10-01	60.1
1997-01-01	63.9
1997-04-01	65.9
1997-07-01	68.9
1997-10-01	70.6
1998-01-01	70.5
1998-04-01	71.2
1998-07-01	73.9
1998-10-01	72.6
1999-01-01	74.1
1999-04-01	77.5
1999-07-01	79.9
1999-10-01	79.4
2000-01-01	77.7
2000-04-01	78.6
2000-07-01	78.1
2000-10-01	77.8
2001-01-01	78.2
2001-04-01	79.4
2001-07-01	80.7
2001-10-01	82.0
2002-01-01	81.4
2002-04-01	84.9
2002-07-01	88.6
2002-10-01	89.3
2003-01-01	89.2
2003-04-01	87.4
2003-07-01	87.7
2003-10-01	86.6
2004-01-01	84.8
2004-04-01	83.1
2004-07-01	82.0
2004-10-01	79.7
2005-01-01	80.3
2005-04-01	78.8
2005-07-01	77.8
2005-10-01	79.4
2006-01-01	79.2
2006-04-01	80.9
2006-07-01	79.1
2006-10-01	79.0
2007-01-01	77.6
2007-04-01	78.1
2007-07-01	78.7
2007-10-01	77.6
2008-01-01	75.7
2008-04-01	75.0
2008-07-01	74.3
2008-10-01	74.8
2009-01-01	79.1
2009-04-01	78.7
2009-07-01	77.8
2009-10-01	80.2
2010-01-01	79.4
2010-04-01	81.1
2010-07-01	82.1
2010-10-01	84.1
2011-01-01	84.4
2011-04-01	82.8
2011-07-01	84.3
2011-10-01	84.2
2012-01-01	82.4
2012-04-01	82.0
2012-07-01	82.0
2012-10-01	82.9
2013-01-01	84.3
2013-04-01	86.1
2013-07-01	88.6
2013-10-01	88.8
2014-01-01	91.4
2014-04-01	92.5
2014-07-01	94.1
2014-10-01	98.7
2015-01-01	102.1
2015-04-01	105.0
2015-07-01	110.3
2015-10-01	109.9
2016-01-01	111.1
2016-04-01	111.1
2016-07-01	111.4
2016-10-01	112.0
2017-01-01	111.9
2017-04-01	112.2
2017-07-01	112.2
2017-10-01	111.9
2018-01-01	111.4