Quarter	Percentage of GDP
2001-10-01	172.2
2002-01-01	172.9
2002-04-01	175.2
2002-07-01	177.4
2002-10-01	177.8
2003-01-01	177.3
2003-04-01	178.9
2003-07-01	178.7
2003-10-01	178.3
2004-01-01	180.4
2004-04-01	179.6
2004-07-01	179.2
2004-10-01	179.3
2005-01-01	179.3
2005-04-01	179.5
2005-07-01	178.7
2005-10-01	178.6
2006-01-01	178.8
2006-04-01	178.5
2006-07-01	178.4
2006-10-01	178.2
2007-01-01	177.8
2007-04-01	178.1
2007-07-01	179.1
2007-10-01	179.8
2008-01-01	178.7
2008-04-01	178.1
2008-07-01	179.7
2008-10-01	184.8
2009-01-01	189.4
2009-04-01	193.5
2009-07-01	197.6
2009-10-01	198.5
2010-01-01	196.8
2010-04-01	198.0
2010-07-01	198.4
2010-10-01	197.9
2011-01-01	195.1
2011-04-01	195.5
2011-07-01	197.2
2011-10-01	198.6
2012-01-01	198.9
2012-04-01	200.6
2012-07-01	201.7
2012-10-01	203.3
2013-01-01	204.5
2013-04-01	204.9
2013-07-01	205.4
2013-10-01	205.8
2014-01-01	207.0
2014-04-01	208.1
2014-07-01	208.5
2014-10-01	211.1
2015-01-01	212.7
2015-04-01	212.0
2015-07-01	213.7
2015-10-01	215.8
2016-01-01	218.4
2016-04-01	220.1
2016-07-01	220.6
2016-10-01	219.6
2017-01-01	218.9
2017-04-01	218.6
2017-07-01	218.7
2017-10-01	218.4
2018-01-01	219.3