Quarter	Percentage of GDP
1998-04-01	78.7
1998-07-01	79.4
1998-10-01	80.8
1999-01-01	79.2
1999-04-01	78.5
1999-07-01	78.6
1999-10-01	80.6
2000-01-01	81.3
2000-04-01	81.3
2000-07-01	81.3
2000-10-01	82.0
2001-01-01	83.4
2001-04-01	84.9
2001-07-01	78.9
2001-10-01	79.1
2002-01-01	81.0
2002-04-01	80.0
2002-07-01	80.4
2002-10-01	79.6
2003-01-01	79.7
2003-04-01	79.0
2003-07-01	77.3
2003-10-01	76.2
2004-01-01	76.9
2004-04-01	79.6
2004-07-01	77.8
2004-10-01	81.1
2005-01-01	82.5
2005-04-01	83.2
2005-07-01	84.3
2005-10-01	86.9
2006-01-01	87.6
2006-04-01	89.9
2006-07-01	91.5
2006-10-01	90.9
2007-01-01	93.8
2007-04-01	94.5
2007-07-01	94.5
2007-10-01	94.7
2008-01-01	95.9
2008-04-01	99.0
2008-07-01	100.9
2008-10-01	101.2
2009-01-01	102.0
2009-04-01	100.6
2009-07-01	98.9
2009-10-01	97.2
2010-01-01	96.5
2010-04-01	94.9
2010-07-01	92.7
2010-10-01	92.2
2011-01-01	91.6
2011-04-01	90.2
2011-07-01	88.4
2011-10-01	86.5
2012-01-01	87.2
2012-04-01	86.2
2012-07-01	86.3
2012-10-01	87.6
2013-01-01	87.8
2013-04-01	86.9
2013-07-01	86.0
2013-10-01	84.4
2014-01-01	83.3
2014-04-01	83.4
2014-07-01	83.1
2014-10-01	83.5
2015-01-01	83.0
2015-04-01	82.7
2015-07-01	82.6
2015-10-01	82.3
2016-01-01	82.0
2016-04-01	81.5
2016-07-01	81.8
2016-10-01	81.7
2017-01-01	81.2
2017-04-01	81.0
2017-07-01	81.7
2017-10-01	81.1
2018-01-01	80.6