Quarter	Percentage of GDP
1990-10-01	41.0
1991-01-01	41.6
1991-04-01	41.5
1991-07-01	41.7
1991-10-01	41.8
1992-01-01	40.7
1992-04-01	40.6
1992-07-01	41.2
1992-10-01	44.1
1993-01-01	45.7
1993-04-01	46.9
1993-07-01	46.7
1993-10-01	50.6
1994-01-01	50.7
1994-04-01	52.4
1994-07-01	53.7
1994-10-01	57.0
1995-01-01	57.4
1995-04-01	56.7
1995-07-01	55.8
1995-10-01	57.1
1996-01-01	57.8
1996-04-01	59.1
1996-07-01	59.4
1996-10-01	59.8
1997-01-01	59.0
1997-04-01	61.6
1997-07-01	61.4
1997-10-01	62.2
1998-01-01	61.8
1998-04-01	63.4
1998-07-01	64.6
1998-10-01	67.5
1999-01-01	66.6
1999-04-01	66.8
1999-07-01	68.7
1999-10-01	70.1
2000-01-01	69.8
2000-04-01	69.8
2000-07-01	69.5
2000-10-01	70.6
2001-01-01	71.3
2001-04-01	72.4
2001-07-01	75.1
2001-10-01	76.6
2002-01-01	78.7
2002-04-01	80.3
2002-07-01	80.8
2002-10-01	78.8
2003-01-01	77.0
2003-04-01	75.1
2003-07-01	75.4
2003-10-01	75.7
2004-01-01	75.2
2004-04-01	74.3
2004-07-01	73.0
2004-10-01	71.9
2005-01-01	70.6
2005-04-01	70.7
2005-07-01	70.9
2005-10-01	70.6
2006-01-01	69.1
2006-04-01	67.7
2006-07-01	66.9
2006-10-01	66.2
2007-01-01	66.6
2007-04-01	67.8
2007-07-01	67.6
2007-10-01	66.8
2008-01-01	67.2
2008-04-01	68.0
2008-07-01	69.2
2008-10-01	70.0
2009-01-01	69.6
2009-04-01	67.5
2009-07-01	66.9
2009-10-01	66.7
2010-01-01	66.3
2010-04-01	67.0
2010-07-01	68.1
2010-10-01	68.3
2011-01-01	68.6
2011-04-01	68.5
2011-07-01	69.4
2011-10-01	68.8
2012-01-01	68.3
2012-04-01	68.3
2012-07-01	67.6
2012-10-01	67.7
2013-01-01	67.0
2013-04-01	66.0
2013-07-01	66.2
2013-10-01	65.6
2014-01-01	65.3
2014-04-01	65.3
2014-07-01	65.9
2014-10-01	65.6
2015-01-01	65.6
2015-04-01	65.7
2015-07-01	66.0
2015-10-01	66.1
2016-01-01	66.3
2016-04-01	66.6
2016-07-01	66.0
2016-10-01	65.1
2017-01-01	65.0
2017-04-01	65.2
2017-07-01	65.5
2017-10-01	65.3
2018-01-01	65.8