Quarter	Percentage of GDP
1990-01-01	62.4
1990-04-01	63.2
1990-07-01	64.4
1990-10-01	67.4
1991-01-01	69.9
1991-04-01	71.1
1991-07-01	73.5
1991-10-01	76.2
1992-01-01	74.9
1992-04-01	78.4
1992-07-01	79.5
1992-10-01	80.5
1993-01-01	85.0
1993-04-01	87.8
1993-07-01	89.4
1993-10-01	90.9
1994-01-01	89.0
1994-04-01	89.1
1994-07-01	88.6
1994-10-01	89.6
1995-01-01	90.3
1995-04-01	91.5
1995-07-01	92.1
1995-10-01	89.5
1996-01-01	93.6
1996-04-01	92.6
1996-07-01	93.7
1996-10-01	94.6
1997-01-01	92.4
1997-04-01	89.8
1997-07-01	87.7
1997-10-01	88.4
1998-01-01	88.4
1998-04-01	86.7
1998-07-01	85.6
1998-10-01	87.1
1999-01-01	85.9
1999-04-01	81.7
1999-07-01	79.9
1999-10-01	78.6
2000-01-01	76.4
2000-04-01	74.4
2000-07-01	71.2
2000-10-01	71.6
2001-01-01	70.8
2001-04-01	68.2
2001-07-01	69.3
2001-10-01	70.3
2002-01-01	69.3
2002-04-01	70.4
2002-07-01	71.0
2002-10-01	70.7
2003-01-01	67.9
2003-04-01	69.2
2003-07-01	66.7
2003-10-01	66.3
2004-01-01	67.1
2004-04-01	64.8
2004-07-01	63.3
2004-10-01	62.7
2005-01-01	62.6
2005-04-01	62.8
2005-07-01	60.9
2005-10-01	59.5
2006-01-01	58.2
2006-04-01	56.1
2006-07-01	56.3
2006-10-01	57.0
2007-01-01	56.4
2007-04-01	53.0
2007-07-01	52.4
2007-10-01	52.8
2008-01-01	53.0
2008-04-01	53.3
2008-07-01	52.8
2008-10-01	57.4
2009-01-01	61.2
2009-04-01	63.8
2009-07-01	67.3
2009-10-01	68.9
2010-01-01	68.6
2010-04-01	70.3
2010-07-01	71.5
2010-10-01	71.3
2011-01-01	69.8
2011-04-01	72.3
2011-07-01	74.1
2011-10-01	74.8
2012-01-01	73.8
2012-04-01	77.0
2012-07-01	76.6
2012-10-01	77.3
2013-01-01	76.6
2013-04-01	75.4
2013-07-01	74.6
2013-10-01	73.0
2014-01-01	72.4
2014-04-01	74.1
2014-07-01	73.6
2014-10-01	73.9
2015-01-01	76.1
2015-04-01	75.9
2015-07-01	76.8
2015-10-01	78.1
2016-01-01	78.3
2016-04-01	80.7
2016-07-01	81.6
2016-10-01	78.8
2017-01-01	78.1
2017-04-01	78.2
2017-07-01	75.7
2017-10-01	75.4
2018-01-01	74.1