Quarter	Percentage of GDP
1999-01-01	183.1
1999-04-01	185.3
1999-07-01	188.7
1999-10-01	190.5
2000-01-01	194.3
2000-04-01	196.9
2000-07-01	202.3
2000-10-01	196.8
2001-01-01	198.2
2001-04-01	198.4
2001-07-01	199.7
2001-10-01	199.4
2002-01-01	201.4
2002-04-01	201.7
2002-07-01	203.1
2002-10-01	200.8
2003-01-01	202.8
2003-04-01	205.9
2003-07-01	202.2
2003-10-01	201.4
2004-01-01	203.8
2004-04-01	206.4
2004-07-01	207.0
2004-10-01	200.6
2005-01-01	208.0
2005-04-01	216.0
2005-07-01	216.2
2005-10-01	208.4
2006-01-01	210.6
2006-04-01	214.2
2006-07-01	212.4
2006-10-01	206.5
2007-01-01	207.6
2007-04-01	212.3
2007-07-01	215.1
2007-10-01	207.2
2008-01-01	208.2
2008-04-01	206.6
2008-07-01	208.2
2008-10-01	215.2
2009-01-01	218.5
2009-04-01	221.5
2009-07-01	222.9
2009-10-01	229.9
2010-01-01	232.2
2010-04-01	238.0
2010-07-01	237.2
2010-10-01	234.9
2011-01-01	230.3
2011-04-01	231.3
2011-07-01	233.8
2011-10-01	233.6
2012-01-01	234.1
2012-04-01	238.4
2012-07-01	237.4
2012-10-01	236.1
2013-01-01	236.0
2013-04-01	233.7
2013-07-01	233.9
2013-10-01	235.7
2014-01-01	235.3
2014-04-01	238.6
2014-07-01	238.0
2014-10-01	238.8
2015-01-01	242.1
2015-04-01	236.5
2015-07-01	237.5
2015-10-01	236.7
2016-01-01	238.6
2016-04-01	239.7
2016-07-01	239.0
2016-10-01	238.9
2017-01-01	235.8
2017-04-01	232.8
2017-07-01	230.7
2017-10-01	227.8
2018-01-01	224.9