Quarter	Percentage of GDP
1999-10-01	139.1
2000-01-01	130.9
2000-04-01	124.8
2000-07-01	120.1
2000-10-01	117.6
2001-01-01	118.0
2001-04-01	120.5
2001-07-01	124.0
2001-10-01	126.9
2002-01-01	129.2
2002-04-01	132.1
2002-07-01	132.3
2002-10-01	131.0
2003-01-01	128.3
2003-04-01	124.5
2003-07-01	120.7
2003-10-01	115.8
2004-01-01	108.8
2004-04-01	107.0
2004-07-01	105.7
2004-10-01	101.5
2005-01-01	93.4
2005-04-01	89.5
2005-07-01	83.7
2005-10-01	78.6
2006-01-01	73.5
2006-04-01	69.5
2006-07-01	66.9
2006-10-01	65.9
2007-01-01	65.5
2007-04-01	66.3
2007-07-01	67.2
2007-10-01	63.2
2008-01-01	60.8
2008-04-01	57.9
2008-07-01	55.3
2008-10-01	57.9
2009-01-01	61.5
2009-04-01	68.2
2009-07-01	72.7
2009-10-01	67.6
2010-01-01	63.4
2010-04-01	59.9
2010-07-01	58.1
2010-10-01	54.6
2011-01-01	52.8
2011-04-01	50.1
2011-07-01	48.8
2011-10-01	44.3
2012-01-01	45.7
2012-04-01	44.4
2012-07-01	42.1
2012-10-01	41.5
2013-01-01	43.1
2013-04-01	45.2
2013-07-01	45.8
2013-10-01	45.8
2014-01-01	48.0
2014-04-01	49.3
2014-07-01	50.2
2014-10-01	49.8
2015-01-01	53.5
2015-04-01	58.1
2015-07-01	62.1
2015-10-01	67.6
2016-01-01	72.3
2016-04-01	77.4
2016-07-01	78.8
2016-10-01	77.5
2017-01-01	77.8
2017-04-01	78.3
2017-07-01	77.8
2017-10-01	77.6
2018-01-01	76.8