Quarter	Percentage of GDP
1988-04-01	27.5
1988-07-01	26.5
1988-10-01	24.4
1989-01-01	23.4
1989-04-01	22.6
1989-07-01	21.4
1989-10-01	20.5
1990-01-01	20.7
1990-04-01	20.5
1990-07-01	20.0
1990-10-01	19.9
1991-01-01	20.3
1991-04-01	22.4
1991-07-01	23.8
1991-10-01	24.4
1992-01-01	25.0
1992-04-01	25.6
1992-07-01	26.9
1992-10-01	28.2
1993-01-01	29.5
1993-04-01	31.1
1993-07-01	32.1
1993-10-01	32.9
1994-01-01	32.9
1994-04-01	33.0
1994-07-01	33.2
1994-10-01	33.4
1995-01-01	33.7
1995-04-01	34.1
1995-07-01	33.8
1995-10-01	33.4
1996-01-01	32.7
1996-04-01	31.4
1996-07-01	30.9
1996-10-01	30.6
1997-01-01	30.2
1997-04-01	29.3
1997-07-01	28.2
1997-10-01	26.7
1998-01-01	25.7
1998-04-01	24.6
1998-07-01	23.9
1998-10-01	23.1
1999-01-01	22.0
1999-04-01	21.5
1999-07-01	20.8
1999-10-01	19.9
2000-01-01	18.8
2000-04-01	18.2
2000-07-01	17.0
2000-10-01	16.2
2001-01-01	15.6
2001-04-01	15.2
2001-07-01	15.0
2001-10-01	14.6
2002-01-01	14.0
2002-04-01	13.7
2002-07-01	13.3
2002-10-01	12.8
2003-01-01	12.4
2003-04-01	12.1
2003-07-01	11.8
2003-10-01	11.4
2004-01-01	11.1
2004-04-01	10.7
2004-07-01	10.6
2004-10-01	10.3
2005-01-01	10.1
2005-04-01	9.9
2005-07-01	9.7
2005-10-01	9.3
2006-01-01	9.0
2006-04-01	8.8
2006-07-01	8.7
2006-10-01	8.4
2007-01-01	8.1
2007-04-01	8.1
2007-07-01	8.3
2007-10-01	8.2
2008-01-01	8.1
2008-04-01	8.8
2008-07-01	9.5
2008-10-01	10.5
2009-01-01	11.3
2009-04-01	12.2
2009-07-01	14.0
2009-10-01	14.8
2010-01-01	16.0
2010-04-01	16.9
2010-07-01	17.6
2010-10-01	17.9
2011-01-01	18.8
2011-04-01	20.0
2011-07-01	21.0
2011-10-01	21.7
2012-01-01	22.3
2012-04-01	23.7
2012-07-01	24.4
2012-10-01	24.8
2013-01-01	25.2
2013-04-01	25.6
2013-07-01	26.7
2013-10-01	27.6
2014-01-01	28.3
2014-04-01	29.3
2014-07-01	30.1
2014-10-01	30.9
2015-01-01	31.7
2015-04-01	32.2
2015-07-01	33.2
2015-10-01	33.6
2016-01-01	34.3
2016-04-01	34.6
2016-07-01	35.8
2016-10-01	35.9
2017-01-01	36.3
2017-04-01	36.9
2017-07-01	37.1
2017-10-01	37.5
2018-01-01	37.7