Quarter	Percentage of GDP
2008-01-01	52.4
2008-04-01	52.1
2008-07-01	52.0
2008-10-01	51.8
2009-01-01	52.0
2009-04-01	52.7
2009-07-01	53.4
2009-10-01	53.4
2010-01-01	52.7
2010-04-01	52.4
2010-07-01	52.1
2010-10-01	51.8
2011-01-01	51.0
2011-04-01	50.6
2011-07-01	50.2
2011-10-01	50.0
2012-01-01	49.4
2012-04-01	49.3
2012-07-01	49.3
2012-10-01	49.3
2013-01-01	49.2
2013-04-01	49.3
2013-07-01	49.4
2013-10-01	49.3
2014-01-01	48.9
2014-04-01	48.9
2014-07-01	48.8
2014-10-01	48.8
2015-01-01	48.5
2015-04-01	48.7
2015-07-01	48.9
2015-10-01	49.0
2016-01-01	49.1
2016-04-01	49.5
2016-07-01	50.0
2016-10-01	50.2
2017-01-01	50.2
2017-04-01	50.5
2017-07-01	50.7
2017-10-01	50.8
2018-01-01	50.8