Quarter	Percentage of GDP
2001-10-01	41.2
2002-01-01	41.8
2002-04-01	41.9
2002-07-01	41.6
2002-10-01	43.1
2003-01-01	43.8
2003-04-01	45.8
2003-07-01	45.8
2003-10-01	45.2
2004-01-01	45.0
2004-04-01	42.8
2004-07-01	42.8
2004-10-01	43.9
2005-01-01	42.8
2005-04-01	41.3
2005-07-01	40.3
2005-10-01	39.3
2006-01-01	39.3
2006-04-01	37.9
2006-07-01	37.4
2006-10-01	37.5
2007-01-01	37.7
2007-04-01	38.1
2007-07-01	37.9
2007-10-01	37.7
2008-01-01	36.5
2008-04-01	35.8
2008-07-01	32.0
2008-10-01	31.1
2009-01-01	32.6
2009-04-01	37.8
2009-07-01	41.7
2009-10-01	42.3
2010-01-01	41.2
2010-04-01	39.7
2010-07-01	40.8
2010-10-01	40.3
2011-01-01	40.2
2011-04-01	39.9
2011-07-01	36.4
2011-10-01	36.1
2012-01-01	37.3
2012-04-01	36.5
2012-07-01	37.7
2012-10-01	38.1
2013-01-01	38.5
2013-04-01	37.6
2013-07-01	37.8
2013-10-01	38.4
2014-01-01	39.0
2014-04-01	40.2
2014-07-01	39.3
2014-10-01	39.2
2015-01-01	39.4
2015-04-01	40.9
2015-07-01	40.5
2015-10-01	41.5
2016-01-01	44.4
2016-04-01	45.5
2016-07-01	46.4
2016-10-01	45.5
2017-01-01	47.2
2017-04-01	47.9
2017-07-01	48.6
2017-10-01	49.1
2018-01-01	49.7