Quarter	Percentage of GDP
1999-10-01	63.6
2000-01-01	63.1
2000-04-01	62.8
2000-07-01	61.9
2000-10-01	63.4
2001-01-01	61.6
2001-04-01	62.6
2001-07-01	65.8
2001-10-01	64.9
2002-01-01	65.6
2002-04-01	70.2
2002-07-01	69.7
2002-10-01	71.4
2003-01-01	70.9
2003-04-01	71.9
2003-07-01	73.3
2003-10-01	75.1
2004-01-01	73.5
2004-04-01	72.7
2004-07-01	73.0
2004-10-01	76.5
2005-01-01	74.1
2005-04-01	72.5
2005-07-01	73.1
2005-10-01	73.6
2006-01-01	75.6
2006-04-01	78.4
2006-07-01	78.6
2006-10-01	79.7
2007-01-01	79.5
2007-04-01	80.3
2007-07-01	82.0
2007-10-01	82.1
2008-01-01	83.2
2008-04-01	81.2
2008-07-01	77.1
2008-10-01	76.0
2009-01-01	76.2
2009-04-01	81.9
2009-07-01	85.2
2009-10-01	83.7
2010-01-01	80.3
2010-04-01	77.8
2010-07-01	81.5
2010-10-01	81.4
2011-01-01	81.9
2011-04-01	80.8
2011-07-01	77.0
2011-10-01	75.7
2012-01-01	75.8
2012-04-01	75.0
2012-07-01	76.9
2012-10-01	76.7
2013-01-01	74.9
2013-04-01	74.6
2013-07-01	76.2
2013-10-01	76.0
2014-01-01	75.7
2014-04-01	75.5
2014-07-01	72.3
2014-10-01	71.1
2015-01-01	69.2
2015-04-01	72.2
2015-07-01	73.0
2015-10-01	73.3
2016-01-01	74.9
2016-04-01	74.6
2016-07-01	74.8
2016-10-01	72.3
2017-01-01	73.2
2017-04-01	75.3
2017-07-01	76.0
2017-10-01	75.8
2018-01-01	75.2