Quarter	Percentage of GDP
1998-10-01	69.6
1999-01-01	68.6
1999-04-01	67.0
1999-07-01	62.6
1999-10-01	61.0
2000-01-01	61.5
2000-04-01	58.8
2000-07-01	56.6
2000-10-01	54.6
2001-01-01	53.5
2001-04-01	54.7
2001-07-01	52.8
2001-10-01	51.5
2002-01-01	51.1
2002-04-01	52.1
2002-07-01	51.6
2002-10-01	51.8
2003-01-01	52.6
2003-04-01	52.9
2003-07-01	52.7
2003-10-01	52.2
2004-01-01	53.3
2004-04-01	53.3
2004-07-01	53.4
2004-10-01	53.0
2005-01-01	52.4
2005-04-01	55.9
2005-07-01	53.3
2005-10-01	52.3
2006-01-01	50.5
2006-04-01	49.5
2006-07-01	48.3
2006-10-01	46.0
2007-01-01	45.7
2007-04-01	45.4
2007-07-01	44.3
2007-10-01	43.1
2008-01-01	44.2
2008-04-01	44.4
2008-07-01	45.2
2008-10-01	56.5
2009-01-01	59.1
2009-04-01	58.4
2009-07-01	58.9
2009-10-01	58.9
2010-01-01	60.0
2010-04-01	63.1
2010-07-01	62.8
2010-10-01	62.3
2011-01-01	60.9
2011-04-01	62.7
2011-07-01	65.4
2011-10-01	66.8
2012-01-01	66.8
2012-04-01	69.2
2012-07-01	70.5
2012-10-01	72.6
2013-01-01	72.2
2013-04-01	73.0
2013-07-01	71.6
2013-10-01	71.5
2014-01-01	71.7
2014-04-01	74.3
2014-07-01	74.5
2014-10-01	75.9
2015-01-01	78.6
2015-04-01	73.7
2015-07-01	72.7
2015-10-01	71.9
2016-01-01	73.5
2016-04-01	74.0
2016-07-01	71.8
2016-10-01	70.8
2017-01-01	67.5
2017-04-01	66.6
2017-07-01	64.2
2017-10-01	64.1
2018-01-01	61.6