Quarter	Percentage of GDP
1999-01-01	210.3
1999-04-01	206.5
1999-07-01	215.8
1999-10-01	216.0
2000-01-01	213.6
2000-04-01	211.4
2000-07-01	205.9
2000-10-01	210.7
2001-01-01	204.9
2001-04-01	205.7
2001-07-01	215.4
2001-10-01	210.4
2002-01-01	211.4
2002-04-01	228.3
2002-07-01	225.3
2002-10-01	229.8
2003-01-01	228.0
2003-04-01	229.3
2003-07-01	231.3
2003-10-01	235.6
2004-01-01	234.0
2004-04-01	227.7
2004-07-01	226.6
2004-10-01	238.0
2005-01-01	230.9
2005-04-01	223.8
2005-07-01	222.4
2005-10-01	221.8
2006-01-01	226.7
2006-04-01	233.2
2006-07-01	232.1
2006-10-01	234.0
2007-01-01	233.6
2007-04-01	233.0
2007-07-01	239.9
2007-10-01	242.6
2008-01-01	251.0
2008-04-01	243.0
2008-07-01	232.1
2008-10-01	239.2
2009-01-01	240.1
2009-04-01	259.0
2009-07-01	272.7
2009-10-01	267.3
2010-01-01	258.5
2010-04-01	253.9
2010-07-01	269.8
2010-10-01	269.3
2011-01-01	272.0
2011-04-01	271.2
2011-07-01	264.4
2011-10-01	262.0
2012-01-01	264.6
2012-04-01	264.4
2012-07-01	273.8
2012-10-01	272.1
2013-01-01	265.9
2013-04-01	264.0
2013-07-01	269.2
2013-10-01	268.5
2014-01-01	270.4
2014-04-01	270.5
2014-07-01	258.3
2014-10-01	255.8
2015-01-01	252.1
2015-04-01	259.3
2015-07-01	264.1
2015-10-01	266.0
2016-01-01	277.2
2016-04-01	279.3
2016-07-01	279.3
2016-10-01	264.4
2017-01-01	268.1
2017-04-01	274.9
2017-07-01	277.4
2017-10-01	276.0
2018-01-01	276.2