Quarter	Percentage of GDP
1999-01-01	193.6
1999-04-01	194.4
1999-07-01	193.8
1999-10-01	195.1
2000-01-01	195.4
2000-04-01	195.5
2000-07-01	196.2
2000-10-01	197.9
2001-01-01	197.8
2001-04-01	198.3
2001-07-01	198.9
2001-10-01	201.0
2002-01-01	201.2
2002-04-01	202.2
2002-07-01	203.1
2002-10-01	203.8
2003-01-01	205.4
2003-04-01	207.8
2003-07-01	207.4
2003-10-01	207.1
2004-01-01	209.2
2004-04-01	209.9
2004-07-01	210.4
2004-10-01	211.3
2005-01-01	212.9
2005-04-01	217.0
2005-07-01	216.8
2005-10-01	216.5
2006-01-01	217.9
2006-04-01	218.2
2006-07-01	217.3
2006-10-01	216.1
2007-01-01	216.1
2007-04-01	217.0
2007-07-01	216.4
2007-10-01	218.0
2008-01-01	220.0
2008-04-01	220.5
2008-07-01	222.9
2008-10-01	228.6
2009-01-01	235.0
2009-04-01	240.5
2009-07-01	244.5
2009-10-01	247.2
2010-01-01	249.4
2010-04-01	251.0
2010-07-01	250.7
2010-10-01	251.3
2011-01-01	250.1
2011-04-01	251.3
2011-07-01	252.3
2011-10-01	254.4
2012-01-01	259.0
2012-04-01	262.1
2012-07-01	264.1
2012-10-01	265.5
2013-01-01	266.6
2013-04-01	266.6
2013-07-01	264.8
2013-10-01	263.7
2014-01-01	266.2
2014-04-01	268.4
2014-07-01	268.7
2014-10-01	270.4
2015-01-01	278.2
2015-04-01	271.2
2015-07-01	270.7
2015-10-01	268.4
2016-01-01	270.6
2016-04-01	272.0
2016-07-01	270.5
2016-10-01	267.7
2017-01-01	266.7
2017-04-01	265.0
2017-07-01	262.3
2017-10-01	260.0
2018-01-01	260.0