Quarter	Percentage of GDP
2001-10-01	58.9
2002-01-01	59.6
2002-04-01	64.3
2002-07-01	63.0
2002-10-01	64.3
2003-01-01	64.7
2003-04-01	65.6
2003-07-01	66.8
2003-10-01	67.8
2004-01-01	69.4
2004-04-01	67.7
2004-07-01	66.6
2004-10-01	69.4
2005-01-01	67.4
2005-04-01	64.4
2005-07-01	63.1
2005-10-01	62.1
2006-01-01	63.0
2006-04-01	63.4
2006-07-01	62.1
2006-10-01	61.8
2007-01-01	61.5
2007-04-01	60.4
2007-07-01	61.2
2007-10-01	60.9
2008-01-01	62.5
2008-04-01	60.2
2008-07-01	57.4
2008-10-01	60.7
2009-01-01	62.6
2009-04-01	69.6
2009-07-01	75.0
2009-10-01	74.6
2010-01-01	73.1
2010-04-01	72.4
2010-07-01	76.4
2010-10-01	77.4
2011-01-01	78.0
2011-04-01	77.7
2011-07-01	75.2
2011-10-01	74.7
2012-01-01	75.4
2012-04-01	75.6
2012-07-01	78.0
2012-10-01	77.3
2013-01-01	76.0
2013-04-01	75.4
2013-07-01	76.4
2013-10-01	76.7
2014-01-01	77.4
2014-04-01	77.8
2014-07-01	74.4
2014-10-01	73.4
2015-01-01	72.3
2015-04-01	74.6
2015-07-01	75.5
2015-10-01	77.1
2016-01-01	80.5
2016-04-01	81.6
2016-07-01	81.9
2016-10-01	78.4
2017-01-01	79.6
2017-04-01	80.8
2017-07-01	81.5
2017-10-01	81.0
2018-01-01	81.8