Quarter	Percentage of GDP
1990-10-01	63.9
1991-01-01	61.9
1991-04-01	61.5
1991-07-01	61.4
1991-10-01	64.1
1992-01-01	62.7
1992-04-01	62.7
1992-07-01	62.2
1992-10-01	62.4
1993-01-01	62.5
1993-04-01	63.7
1993-07-01	64.6
1993-10-01	65.5
1994-01-01	69.1
1994-04-01	72.5
1994-07-01	74.9
1994-10-01	77.6
1995-01-01	81.0
1995-04-01	82.7
1995-07-01	82.9
1995-10-01	82.0
1996-01-01	76.8
1996-04-01	72.8
1996-07-01	69.2
1996-10-01	65.9
1997-01-01	64.0
1997-04-01	61.4
1997-07-01	57.8
1997-10-01	55.2
1998-01-01	55.3
1998-04-01	55.6
1998-07-01	55.8
1998-10-01	54.2
1999-01-01	52.8
1999-04-01	51.6
1999-07-01	48.8
1999-10-01	47.5
2000-01-01	46.3
2000-04-01	46.3
2000-07-01	45.0
2000-10-01	44.2
2001-01-01	43.4
2001-04-01	42.2
2001-07-01	42.2
2001-10-01	42.3
2002-01-01	42.3
2002-04-01	43.7
2002-07-01	44.2
2002-10-01	44.8
2003-01-01	44.7
2003-04-01	44.7
2003-07-01	45.5
2003-10-01	46.1
2004-01-01	46.0
2004-04-01	45.3
2004-07-01	44.7
2004-10-01	44.1
2005-01-01	44.0
2005-04-01	43.7
2005-07-01	43.2
2005-10-01	43.6
2006-01-01	43.7
2006-04-01	44.7
2006-07-01	45.3
2006-10-01	45.6
2007-01-01	45.8
2007-04-01	46.3
2007-07-01	47.5
2007-10-01	48.7
2008-01-01	48.7
2008-04-01	48.2
2008-07-01	49.2
2008-10-01	54.0
2009-01-01	55.6
2009-04-01	56.2
2009-07-01	58.1
2009-10-01	57.7
2010-01-01	57.7
2010-04-01	58.0
2010-07-01	57.5
2010-10-01	56.7
2011-01-01	57.1
2011-04-01	57.2
2011-07-01	59.7
2011-10-01	59.5
2012-01-01	59.2
2012-04-01	59.3
2012-07-01	60.1
2012-10-01	60.3
2013-01-01	60.6
2013-04-01	62.4
2013-07-01	64.4
2013-10-01	65.9
2014-01-01	67.1
2014-04-01	67.5
2014-07-01	68.4
2014-10-01	69.3
2015-01-01	70.3
2015-04-01	71.0
2015-07-01	73.6
2015-10-01	74.9
2016-01-01	76.7
2016-04-01	77.1
2016-07-01	78.5
2016-10-01	80.1
2017-01-01	77.4
2017-04-01	76.0
2017-07-01	77.2
2017-10-01	78.4
2018-01-01	77.5