Quarter	Percentage of GDP
1995-04-01	15.7
1995-07-01	14.0
1995-10-01	12.5
1996-01-01	11.8
1996-04-01	11.3
1996-07-01	10.1
1996-10-01	11.1
1997-01-01	11.3
1997-04-01	11.7
1997-07-01	12.2
1997-10-01	11.6
1998-01-01	11.3
1998-04-01	11.5
1998-07-01	15.5
1998-10-01	15.4
1999-01-01	14.6
1999-04-01	13.6
1999-07-01	12.8
1999-10-01	12.9
2000-01-01	12.1
2000-04-01	11.9
2000-07-01	12.2
2000-10-01	13.3
2001-01-01	13.4
2001-04-01	14.0
2001-07-01	15.1
2001-10-01	16.1
2002-01-01	16.3
2002-04-01	16.7
2002-07-01	16.9
2002-10-01	17.3
2003-01-01	17.3
2003-04-01	18.3
2003-07-01	19.6
2003-10-01	20.2
2004-01-01	20.6
2004-04-01	21.3
2004-07-01	21.4
2004-10-01	23.0
2005-01-01	21.7
2005-04-01	22.6
2005-07-01	23.2
2005-10-01	24.4
2006-01-01	24.2
2006-04-01	25.4
2006-07-01	26.8
2006-10-01	28.8
2007-01-01	29.9
2007-04-01	32.1
2007-07-01	34.2
2007-10-01	35.1
2008-01-01	35.8
2008-04-01	36.5
2008-07-01	37.2
2008-10-01	38.4
2009-01-01	40.3
2009-04-01	40.6
2009-07-01	41.8
2009-10-01	41.4
2010-01-01	39.4
2010-04-01	39.1
2010-07-01	39.0
2010-10-01	38.6
2011-01-01	37.7
2011-04-01	37.9
2011-07-01	39.4
2011-10-01	40.0
2012-01-01	39.3
2012-04-01	40.9
2012-07-01	41.8
2012-10-01	42.5
2013-01-01	43.1
2013-04-01	44.6
2013-07-01	45.9
2013-10-01	46.6
2014-01-01	47.6
2014-04-01	47.8
2014-07-01	49.2
2014-10-01	54.5
2015-01-01	53.1
2015-04-01	52.1
2015-07-01	54.2
2015-10-01	55.3
2016-01-01	54.3
2016-04-01	52.2
2016-07-01	52.3
2016-10-01	51.8
2017-01-01	50.4
2017-04-01	51.0
2017-07-01	50.9
2017-10-01	50.6
2018-01-01	50.4