Quarter	Percentage of GDP
1996-01-01	54.9
1996-04-01	53.6
1996-07-01	50.1
1996-10-01	47.4
1997-01-01	46.5
1997-04-01	48.2
1997-07-01	49.2
1997-10-01	50.4
1998-01-01	51.9
1998-04-01	52.0
1998-07-01	52.2
1998-10-01	52.0
1999-01-01	52.4
1999-04-01	50.9
1999-07-01	51.9
1999-10-01	51.3
2000-01-01	46.7
2000-04-01	48.3
2000-07-01	47.6
2000-10-01	49.9
2001-01-01	51.8
2001-04-01	50.4
2001-07-01	53.8
2001-10-01	52.1
2002-01-01	52.5
2002-04-01	53.1
2002-07-01	58.8
2002-10-01	55.8
2003-01-01	55.0
2003-04-01	52.0
2003-07-01	51.4
2003-10-01	51.1
2004-01-01	49.0
2004-04-01	49.5
2004-07-01	48.5
2004-10-01	47.6
2005-01-01	48.0
2005-04-01	47.8
2005-07-01	48.1
2005-10-01	49.1
2006-01-01	49.3
2006-04-01	50.4
2006-07-01	51.3
2006-10-01	52.9
2007-01-01	50.9
2007-04-01	49.5
2007-07-01	49.9
2007-10-01	50.4
2008-01-01	52.1
2008-04-01	54.1
2008-07-01	56.2
2008-10-01	58.7
2009-01-01	57.7
2009-04-01	58.4
2009-07-01	59.8
2009-10-01	61.2
2010-01-01	60.3
2010-04-01	60.4
2010-07-01	62.4
2010-10-01	64.0
2011-01-01	63.4
2011-04-01	63.3
2011-07-01	63.5
2011-10-01	65.0
2012-01-01	65.1
2012-04-01	66.5
2012-07-01	66.7
2012-10-01	68.1
2013-01-01	68.8
2013-04-01	69.9
2013-07-01	70.9
2013-10-01	72.3
2014-01-01	71.2
2014-04-01	71.6
2014-07-01	71.7
2014-10-01	71.5
2015-01-01	72.4
2015-04-01	73.7
2015-07-01	75.4
2015-10-01	76.8
2016-01-01	75.2
2016-04-01	74.0
2016-07-01	72.1
2016-10-01	71.6
2017-01-01	70.2
2017-04-01	68.5
2017-07-01	69.8
2017-10-01	68.6
2018-01-01	68.4