Quarter	Percentage of GDP
1990-10-01	34.5
1991-01-01	35.9
1991-04-01	37.4
1991-07-01	38.5
1991-10-01	39.5
1992-01-01	39.3
1992-04-01	39.2
1992-07-01	39.1
1992-10-01	38.8
1993-01-01	38.5
1993-04-01	39.1
1993-07-01	40.4
1993-10-01	39.9
1994-01-01	40.7
1994-04-01	40.9
1994-07-01	39.9
1994-10-01	38.6
1995-01-01	38.6
1995-04-01	39.9
1995-07-01	40.5
1995-10-01	41.2
1996-01-01	42.0
1996-04-01	43.2
1996-07-01	43.7
1996-10-01	44.5
1997-01-01	46.5
1997-04-01	48.3
1997-07-01	51.1
1997-10-01	50.6
1998-01-01	51.1
1998-04-01	52.9
1998-07-01	54.2
1998-10-01	56.0
1999-01-01	56.9
1999-04-01	58.1
1999-07-01	58.5
1999-10-01	58.1
2000-01-01	57.9
2000-04-01	57.7
2000-07-01	57.7
2000-10-01	57.9
2001-01-01	58.3
2001-04-01	59.1
2001-07-01	59.8
2001-10-01	60.3
2002-01-01	61.0
2002-04-01	61.4
2002-07-01	60.9
2002-10-01	60.5
2003-01-01	59.7
2003-04-01	59.7
2003-07-01	59.6
2003-10-01	59.9
2004-01-01	59.5
2004-04-01	57.9
2004-07-01	57.3
2004-10-01	57.7
2005-01-01	57.4
2005-04-01	57.0
2005-07-01	55.5
2005-10-01	55.0
2006-01-01	53.1
2006-04-01	52.4
2006-07-01	51.7
2006-10-01	51.7
2007-01-01	50.9
2007-04-01	50.7
2007-07-01	51.0
2007-10-01	51.2
2008-01-01	51.4
2008-04-01	52.0
2008-07-01	52.0
2008-10-01	51.3
2009-01-01	51.1
2009-04-01	52.2
2009-07-01	54.2
2009-10-01	55.5
2010-01-01	55.3
2010-04-01	56.5
2010-07-01	57.7
2010-10-01	59.3
2011-01-01	59.1
2011-04-01	59.6
2011-07-01	59.4
2011-10-01	59.1
2012-01-01	58.4
2012-04-01	59.4
2012-07-01	59.9
2012-10-01	61.3
2013-01-01	61.3
2013-04-01	62.2
2013-07-01	61.9
2013-10-01	62.7
2014-01-01	63.3
2014-04-01	63.6
2014-07-01	64.2
2014-10-01	65.5
2015-01-01	66.3
2015-04-01	66.5
2015-07-01	66.9
2015-10-01	67.1
2016-01-01	66.5
2016-04-01	66.4
2016-07-01	66.7
2016-10-01	67.6
2017-01-01	67.5
2017-04-01	68.5
2017-07-01	69.3
2017-10-01	70.6
2018-01-01	71.0