Quarter	Percentage of GDP
2001-10-01	60.7
2002-01-01	60.3
2002-04-01	61.7
2002-07-01	63.1
2002-10-01	63.0
2003-01-01	62.6
2003-04-01	63.3
2003-07-01	62.9
2003-10-01	62.4
2004-01-01	64.6
2004-04-01	64.0
2004-07-01	63.7
2004-10-01	63.4
2005-01-01	63.3
2005-04-01	63.0
2005-07-01	61.7
2005-10-01	61.2
2006-01-01	60.2
2006-04-01	58.9
2006-07-01	58.7
2006-10-01	57.8
2007-01-01	57.4
2007-04-01	56.4
2007-07-01	56.4
2007-10-01	56.4
2008-01-01	56.1
2008-04-01	55.1
2008-07-01	55.7
2008-10-01	59.3
2009-01-01	61.2
2009-04-01	63.2
2009-07-01	65.7
2009-10-01	66.6
2010-01-01	67.0
2010-04-01	68.4
2010-07-01	69.2
2010-10-01	69.0
2011-01-01	68.3
2011-04-01	68.7
2011-07-01	70.5
2011-10-01	71.1
2012-01-01	71.3
2012-04-01	72.4
2012-07-01	72.9
2012-10-01	73.6
2013-01-01	73.9
2013-04-01	73.1
2013-07-01	72.9
2013-10-01	73.3
2014-01-01	73.9
2014-04-01	74.4
2014-07-01	74.5
2014-10-01	75.9
2015-01-01	76.2
2015-04-01	74.8
2015-07-01	75.4
2015-10-01	76.0
2016-01-01	77.5
2016-04-01	78.5
2016-07-01	78.5
2016-10-01	77.3
2017-01-01	76.7
2017-04-01	76.5
2017-07-01	76.6
2017-10-01	76.5
2018-01-01	76.6