Quarter	Percentage of GDP
1998-01-01	93.0
1998-04-01	95.1
1998-07-01	96.1
1998-10-01	102.6
1999-01-01	109.8
1999-04-01	107.0
1999-07-01	110.8
1999-10-01	108.4
2000-01-01	104.2
2000-04-01	110.0
2000-07-01	109.9
2000-10-01	112.1
2001-01-01	115.1
2001-04-01	115.5
2001-07-01	121.7
2001-10-01	119.4
2002-01-01	119.9
2002-04-01	125.0
2002-07-01	139.8
2002-10-01	132.0
2003-01-01	131.1
2003-04-01	125.3
2003-07-01	125.7
2003-10-01	122.7
2004-01-01	121.2
2004-04-01	120.3
2004-07-01	117.1
2004-10-01	115.7
2005-01-01	116.9
2005-04-01	115.4
2005-07-01	115.4
2005-10-01	116.2
2006-01-01	116.3
2006-04-01	114.9
2006-07-01	115.9
2006-10-01	117.5
2007-01-01	115.3
2007-04-01	113.8
2007-07-01	112.3
2007-10-01	113.5
2008-01-01	114.0
2008-04-01	115.4
2008-07-01	114.4
2008-10-01	120.1
2009-01-01	117.9
2009-04-01	119.5
2009-07-01	123.0
2009-10-01	126.0
2010-01-01	123.3
2010-04-01	124.5
2010-07-01	124.7
2010-10-01	126.5
2011-01-01	123.8
2011-04-01	124.4
2011-07-01	123.5
2011-10-01	125.6
2012-01-01	125.1
2012-04-01	128.9
2012-07-01	126.5
2012-10-01	129.8
2013-01-01	128.0
2013-04-01	128.5
2013-07-01	128.6
2013-10-01	131.9
2014-01-01	128.9
2014-04-01	130.9
2014-07-01	129.7
2014-10-01	133.1
2015-01-01	136.4
2015-04-01	139.4
2015-07-01	145.0
2015-10-01	148.5
2016-01-01	147.8
2016-04-01	147.3
2016-07-01	146.4
2016-10-01	149.1
2017-01-01	149.8
2017-04-01	149.1
2017-07-01	151.3
2017-10-01	151.7
2018-01-01	152.9