Quarter	Percentage of GDP
2002-01-01	41.2
2002-04-01	39.8
2002-07-01	39.4
2002-10-01	41.3
2003-01-01	39.1
2003-04-01	41.7
2003-07-01	40.6
2003-10-01	42.6
2004-01-01	42.8
2004-04-01	43.2
2004-07-01	43.2
2004-10-01	43.8
2005-01-01	43.9
2005-04-01	44.7
2005-07-01	45.5
2005-10-01	45.5
2006-01-01	45.2
2006-04-01	45.2
2006-07-01	45.1
2006-10-01	45.4
2007-01-01	49.0
2007-04-01	49.4
2007-07-01	49.7
2007-10-01	50.3
2008-01-01	50.4
2008-04-01	51.5
2008-07-01	53.0
2008-10-01	52.9
2009-01-01	53.6
2009-04-01	55.7
2009-07-01	57.2
2009-10-01	57.5
2010-01-01	57.4
2010-04-01	57.1
2010-07-01	56.8
2010-10-01	57.2
2011-01-01	56.9
2011-04-01	57.1
2011-07-01	56.7
2011-10-01	57.1
2012-01-01	57.3
2012-04-01	58.6
2012-07-01	59.4
2012-10-01	60.2
2013-01-01	60.6
2013-04-01	60.7
2013-07-01	59.8
2013-10-01	59.6
2014-01-01	60.0
2014-04-01	60.3
2014-07-01	60.9
2014-10-01	60.0
2015-01-01	60.9
2015-04-01	58.8
2015-07-01	61.0
2015-10-01	60.1
2016-01-01	60.7
2016-04-01	61.2
2016-07-01	64.5
2016-10-01	65.3
2017-01-01	66.5
2017-04-01	67.4
2017-07-01	66.7
2017-10-01	66.8
2018-01-01	66.4