Quarter	Percentage of GDP
2007-04-01	40.4
2007-07-01	41.5
2007-10-01	42.3
2008-01-01	45.7
2008-04-01	44.5
2008-07-01	45.9
2008-10-01	46.2
2009-01-01	48.5
2009-04-01	47.1
2009-07-01	48.0
2009-10-01	47.3
2010-01-01	49.4
2010-04-01	48.6
2010-07-01	48.1
2010-10-01	50.3
2011-01-01	50.2
2011-04-01	49.2
2011-07-01	48.9
2011-10-01	50.4
2012-01-01	52.3
2012-04-01	52.6
2012-07-01	50.6
2012-10-01	51.8
2013-01-01	52.5
2013-04-01	52.9
2013-07-01	52.7
2013-10-01	52.2
2014-01-01	52.8
2014-04-01	51.9
2014-07-01	50.6
2014-10-01	50.3
2015-01-01	50.9
2015-04-01	50.3
2015-07-01	49.5
2015-10-01	50.3
2016-01-01	50.4
2016-04-01	48.8
2016-07-01	48.8
2016-10-01	46.3
2017-01-01	47.7
2017-04-01	45.1
2017-07-01	45.6
2017-10-01	44.8
2018-01-01	46.6