Quarter	Percentage of GDP
1999-01-01	188.9
1999-04-01	182.4
1999-07-01	181.2
1999-10-01	180.6
2000-01-01	176.3
2000-04-01	172.8
2000-07-01	177.8
2000-10-01	176.8
2001-01-01	181.1
2001-04-01	179.7
2001-07-01	178.7
2001-10-01	176.1
2002-01-01	175.8
2002-04-01	175.2
2002-07-01	176.0
2002-10-01	173.9
2003-01-01	174.3
2003-04-01	179.0
2003-07-01	181.1
2003-10-01	184.7
2004-01-01	189.5
2004-04-01	186.5
2004-07-01	186.5
2004-10-01	189.1
2005-01-01	188.3
2005-04-01	192.4
2005-07-01	190.8
2005-10-01	188.6
2006-01-01	186.7
2006-04-01	188.7
2006-07-01	192.1
2006-10-01	189.0
2007-01-01	193.6
2007-04-01	200.2
2007-07-01	204.9
2007-10-01	197.8
2008-01-01	201.9
2008-04-01	206.4
2008-07-01	213.5
2008-10-01	212.7
2009-01-01	212.8
2009-04-01	229.4
2009-07-01	241.0
2009-10-01	247.2
2010-01-01	251.2
2010-04-01	261.8
2010-07-01	274.9
2010-10-01	274.7
2011-01-01	286.2
2011-04-01	289.0
2011-07-01	290.6
2011-10-01	283.6
2012-01-01	285.5
2012-04-01	286.0
2012-07-01	290.6
2012-10-01	291.3
2013-01-01	299.4
2013-04-01	312.8
2013-07-01	320.0
2013-10-01	316.4
2014-01-01	328.5
2014-04-01	340.0
2014-07-01	347.8
2014-10-01	337.7
2015-01-01	350.2
2015-04-01	347.8
2015-07-01	345.5
2015-10-01	344.6
2016-01-01	343.8
2016-04-01	345.2
2016-07-01	347.3
2016-10-01	351.7
2017-01-01	358.1
2017-04-01	369.4
2017-07-01	370.0
2017-10-01	373.6
2018-01-01	376.1