Quarter	Percentage of GDP
1997-10-01	46.6
1998-01-01	47.2
1998-04-01	47.7
1998-07-01	47.7
1998-10-01	48.4
1999-01-01	69.5
1999-04-01	70.7
1999-07-01	71.3
1999-10-01	73.2
2000-01-01	73.4
2000-04-01	74.1
2000-07-01	75.3
2000-10-01	77.4
2001-01-01	77.6
2001-04-01	78.4
2001-07-01	78.8
2001-10-01	81.1
2002-01-01	81.4
2002-04-01	81.5
2002-07-01	81.2
2002-10-01	81.8
2003-01-01	81.8
2003-04-01	82.5
2003-07-01	82.2
2003-10-01	82.8
2004-01-01	82.7
2004-04-01	82.8
2004-07-01	82.5
2004-10-01	83.5
2005-01-01	83.8
2005-04-01	84.9
2005-07-01	84.8
2005-10-01	85.3
2006-01-01	86.9
2006-04-01	87.8
2006-07-01	86.6
2006-10-01	87.1
2007-01-01	87.3
2007-04-01	88.9
2007-07-01	88.9
2007-10-01	91.8
2008-01-01	92.8
2008-04-01	93.8
2008-07-01	95.1
2008-10-01	96.2
2009-01-01	98.1
2009-04-01	99.5
2009-07-01	99.8
2009-10-01	100.8
2010-01-01	100.9
2010-04-01	101.2
2010-07-01	100.5
2010-10-01	101.0
2011-01-01	100.3
2011-04-01	100.8
2011-07-01	100.9
2011-10-01	103.8
2012-01-01	105.0
2012-04-01	105.9
2012-07-01	106.1
2012-10-01	104.9
2013-01-01	104.9
2013-04-01	104.4
2013-07-01	103.9
2013-10-01	102.8
2014-01-01	102.9
2014-04-01	103.2
2014-07-01	103.3
2014-10-01	104.6
2015-01-01	109.5
2015-04-01	107.7
2015-07-01	107.3
2015-10-01	106.3
2016-01-01	106.5
2016-04-01	107.0
2016-07-01	106.5
2016-10-01	106.5
2017-01-01	106.8
2017-04-01	105.4
2017-07-01	104.2
2017-10-01	103.4
2018-01-01	103.8