Quarter	Percentage of GDP
1997-10-01	91.7
1998-01-01	94.4
1998-04-01	97.3
1998-07-01	100.0
1998-10-01	100.5
1999-01-01	105.3
1999-04-01	109.9
1999-07-01	112.0
1999-10-01	114.6
2000-01-01	117.1
2000-04-01	119.7
2000-07-01	119.6
2000-10-01	122.0
2001-01-01	128.0
2001-04-01	129.9
2001-07-01	128.1
2001-10-01	129.1
2002-01-01	131.7
2002-04-01	135.4
2002-07-01	134.8
2002-10-01	135.0
2003-01-01	139.9
2003-04-01	142.0
2003-07-01	140.1
2003-10-01	142.1
2004-01-01	147.1
2004-04-01	148.7
2004-07-01	147.4
2004-10-01	148.4
2005-01-01	150.8
2005-04-01	153.1
2005-07-01	150.3
2005-10-01	150.4
2006-01-01	148.5
2006-04-01	146.9
2006-07-01	148.0
2006-10-01	147.6
2007-01-01	146.5
2007-04-01	145.4
2007-07-01	145.6
2007-10-01	146.4
2008-01-01	147.5
2008-04-01	147.0
2008-07-01	147.3
2008-10-01	150.9
2009-01-01	155.7
2009-04-01	162.2
2009-07-01	166.2
2009-10-01	170.0
2010-01-01	171.3
2010-04-01	175.5
2010-07-01	175.4
2010-10-01	176.9
2011-01-01	177.1
2011-04-01	182.6
2011-07-01	186.2
2011-10-01	190.5
2012-01-01	191.9
2012-04-01	194.7
2012-07-01	196.4
2012-10-01	197.7
2013-01-01	201.8
2013-04-01	201.4
2013-07-01	202.2
2013-10-01	203.1
2014-01-01	202.7
2014-04-01	205.1
2014-07-01	206.0
2014-10-01	211.1
2015-01-01	209.7
2015-04-01	208.6
2015-07-01	207.1
2015-10-01	207.9
2016-01-01	213.2
2016-04-01	218.3
2016-07-01	216.1
2016-10-01	213.3
2017-01-01	212.9
2017-04-01	213.5
2017-07-01	212.8
2017-10-01	212.9
2018-01-01	212.5