Quarter	Percentage of GDP
1996-10-01	68.1
1997-01-01	69.0
1997-04-01	70.3
1997-07-01	68.8
1997-10-01	62.4
1998-01-01	66.1
1998-04-01	67.1
1998-07-01	69.7
1998-10-01	73.5
1999-01-01	72.0
1999-04-01	73.3
1999-07-01	72.4
1999-10-01	74.2
2000-01-01	73.0
2000-04-01	71.2
2000-07-01	70.5
2000-10-01	69.2
2001-01-01	66.6
2001-04-01	67.7
2001-07-01	68.5
2001-10-01	70.0
2002-01-01	72.7
2002-04-01	75.3
2002-07-01	75.1
2002-10-01	77.6
2003-01-01	78.1
2003-04-01	81.1
2003-07-01	81.3
2003-10-01	79.8
2004-01-01	79.8
2004-04-01	77.6
2004-07-01	77.2
2004-10-01	79.2
2005-01-01	77.4
2005-04-01	75.9
2005-07-01	75.6
2005-10-01	75.5
2006-01-01	77.2
2006-04-01	77.5
2006-07-01	77.8
2006-10-01	79.4
2007-01-01	80.5
2007-04-01	82.1
2007-07-01	83.3
2007-10-01	82.9
2008-01-01	83.4
2008-04-01	82.6
2008-07-01	77.7
2008-10-01	75.9
2009-01-01	81.5
2009-04-01	92.0
2009-07-01	99.5
2009-10-01	99.2
2010-01-01	97.8
2010-04-01	95.5
2010-07-01	98.5
2010-10-01	98.8
2011-01-01	99.4
2011-04-01	99.2
2011-07-01	94.0
2011-10-01	95.3
2012-01-01	98.7
2012-04-01	99.1
2012-07-01	103.7
2012-10-01	106.3
2013-01-01	109.3
2013-04-01	110.1
2013-07-01	112.7
2013-10-01	114.4
2014-01-01	116.2
2014-04-01	120.2
2014-07-01	119.1
2014-10-01	118.7
2015-01-01	121.5
2015-04-01	126.3
2015-07-01	127.0
2015-10-01	131.3
2016-01-01	138.7
2016-04-01	139.9
2016-07-01	141.5
2016-10-01	137.5
2017-01-01	140.3
2017-04-01	141.5
2017-07-01	143.4
2017-10-01	144.4
2018-01-01	148.3