Quarter	Percentage of GDP
1998-01-01	41.1
1998-04-01	43.1
1998-07-01	43.9
1998-10-01	50.5
1999-01-01	57.4
1999-04-01	56.1
1999-07-01	58.8
1999-10-01	57.1
2000-01-01	57.5
2000-04-01	61.8
2000-07-01	62.4
2000-10-01	62.2
2001-01-01	63.2
2001-04-01	65.1
2001-07-01	67.9
2001-10-01	67.3
2002-01-01	67.4
2002-04-01	71.9
2002-07-01	81.0
2002-10-01	76.1
2003-01-01	76.1
2003-04-01	73.3
2003-07-01	74.3
2003-10-01	71.6
2004-01-01	72.2
2004-04-01	70.8
2004-07-01	68.6
2004-10-01	68.1
2005-01-01	68.9
2005-04-01	67.6
2005-07-01	67.3
2005-10-01	67.0
2006-01-01	67.0
2006-04-01	64.5
2006-07-01	64.7
2006-10-01	64.7
2007-01-01	64.5
2007-04-01	64.2
2007-07-01	62.5
2007-10-01	63.1
2008-01-01	61.9
2008-04-01	61.3
2008-07-01	58.1
2008-10-01	61.5
2009-01-01	60.2
2009-04-01	61.1
2009-07-01	63.1
2009-10-01	64.8
2010-01-01	63.0
2010-04-01	64.1
2010-07-01	62.3
2010-10-01	62.5
2011-01-01	60.4
2011-04-01	61.1
2011-07-01	60.0
2011-10-01	60.6
2012-01-01	60.0
2012-04-01	62.4
2012-07-01	59.8
2012-10-01	61.6
2013-01-01	59.2
2013-04-01	58.6
2013-07-01	57.7
2013-10-01	59.6
2014-01-01	57.8
2014-04-01	59.3
2014-07-01	58.0
2014-10-01	61.6
2015-01-01	63.9
2015-04-01	65.7
2015-07-01	69.7
2015-10-01	71.7
2016-01-01	72.6
2016-04-01	73.4
2016-07-01	74.3
2016-10-01	77.6
2017-01-01	79.6
2017-04-01	80.6
2017-07-01	81.5
2017-10-01	83.1
2018-01-01	84.5