Quarter	Percentage of GDP
1999-10-01	76.9
2000-01-01	77.6
2000-04-01	77.7
2000-07-01	77.9
2000-10-01	78.4
2001-01-01	79.0
2001-04-01	79.1
2001-07-01	79.1
2001-10-01	79.9
2002-01-01	80.1
2002-04-01	79.9
2002-07-01	79.5
2002-10-01	79.6
2003-01-01	79.2
2003-04-01	78.9
2003-07-01	78.0
2003-10-01	77.6
2004-01-01	77.9
2004-04-01	77.2
2004-07-01	76.7
2004-10-01	76.9
2005-01-01	78.2
2005-04-01	78.5
2005-07-01	78.4
2005-10-01	78.6
2006-01-01	79.9
2006-04-01	80.3
2006-07-01	80.1
2006-10-01	80.7
2007-01-01	81.6
2007-04-01	82.4
2007-07-01	83.2
2007-10-01	84.8
2008-01-01	85.8
2008-04-01	86.4
2008-07-01	87.2
2008-10-01	88.7
2009-01-01	89.4
2009-04-01	89.6
2009-07-01	89.9
2009-10-01	89.5
2010-01-01	89.5
2010-04-01	88.6
2010-07-01	87.7
2010-10-01	86.8
2011-01-01	86.7
2011-04-01	86.7
2011-07-01	86.7
2011-10-01	87.3
2012-01-01	88.3
2012-04-01	88.1
2012-07-01	88.4
2012-10-01	88.0
2013-01-01	88.2
2013-04-01	88.2
2013-07-01	87.9
2013-10-01	87.3
2014-01-01	87.5
2014-04-01	87.2
2014-07-01	87.2
2014-10-01	87.7
2015-01-01	89.7
2015-04-01	89.0
2015-07-01	89.1
2015-10-01	89.1
2016-01-01	89.9
2016-04-01	90.3
2016-07-01	90.6
2016-10-01	90.4
2017-01-01	91.0
2017-04-01	90.6
2017-07-01	90.3
2017-10-01	90.1
2018-01-01	90.3