Quarter	Percentage of GDP
1990-01-01	61.9
1990-04-01	62.3
1990-07-01	63.1
1990-10-01	65.5
1991-01-01	67.1
1991-04-01	68.7
1991-07-01	70.4
1991-10-01	72.4
1992-01-01	72.8
1992-04-01	75.5
1992-07-01	76.7
1992-10-01	78.1
1993-01-01	80.8
1993-04-01	82.2
1993-07-01	83.8
1993-10-01	84.0
1994-01-01	85.3
1994-04-01	87.2
1994-07-01	86.8
1994-10-01	86.7
1995-01-01	86.6
1995-04-01	86.5
1995-07-01	86.9
1995-10-01	86.1
1996-01-01	87.7
1996-04-01	87.1
1996-07-01	86.3
1996-10-01	86.1
1997-01-01	85.0
1997-04-01	83.2
1997-07-01	81.4
1997-10-01	81.1
1998-01-01	80.5
1998-04-01	78.4
1998-07-01	78.2
1998-10-01	79.0
1999-01-01	80.3
1999-04-01	77.4
1999-07-01	76.2
1999-10-01	75.7
2000-01-01	73.7
2000-04-01	71.6
2000-07-01	68.5
2000-10-01	68.1
2001-01-01	67.3
2001-04-01	65.7
2001-07-01	66.2
2001-10-01	66.7
2002-01-01	66.8
2002-04-01	67.3
2002-07-01	66.8
2002-10-01	66.2
2003-01-01	64.2
2003-04-01	63.8
2003-07-01	62.8
2003-10-01	62.4
2004-01-01	62.4
2004-04-01	61.6
2004-07-01	59.6
2004-10-01	58.5
2005-01-01	58.7
2005-04-01	57.5
2005-07-01	56.0
2005-10-01	55.0
2006-01-01	54.4
2006-04-01	52.9
2006-07-01	52.3
2006-10-01	52.7
2007-01-01	52.3
2007-04-01	50.2
2007-07-01	49.3
2007-10-01	49.1
2008-01-01	48.8
2008-04-01	49.7
2008-07-01	49.5
2008-10-01	53.9
2009-01-01	57.6
2009-04-01	60.5
2009-07-01	63.2
2009-10-01	64.6
2010-01-01	64.6
2010-04-01	65.7
2010-07-01	66.0
2010-10-01	66.2
2011-01-01	65.8
2011-04-01	66.9
2011-07-01	67.2
2011-10-01	67.2
2012-01-01	66.6
2012-04-01	68.3
2012-07-01	69.0
2012-10-01	69.4
2013-01-01	69.5
2013-04-01	70.2
2013-07-01	70.3
2013-10-01	69.0
2014-01-01	67.5
2014-04-01	68.3
2014-07-01	67.9
2014-10-01	67.1
2015-01-01	67.2
2015-04-01	69.0
2015-07-01	70.4
2015-10-01	71.4
2016-01-01	71.2
2016-04-01	72.4
2016-07-01	73.1
2016-10-01	72.5
2017-01-01	72.0
2017-04-01	72.6
2017-07-01	71.9
2017-10-01	71.4
2018-01-01	70.4