Quarter	Percentage of GDP
1984-10-01	38.8
1985-01-01	33.8
1985-04-01	53.0
1985-07-01	46.2
1985-10-01	42.1
1986-01-01	35.0
1986-04-01	34.7
1986-07-01	35.6
1986-10-01	39.5
1987-01-01	35.3
1987-04-01	34.5
1987-07-01	38.5
1987-10-01	48.4
1988-01-01	32.7
1988-04-01	33.3
1988-07-01	37.9
1988-10-01	41.3
1989-01-01	9.4
1989-04-01	24.5
1989-07-01	44.7
1989-10-01	91.1
1990-01-01	43.5
1990-04-01	32.9
1990-07-01	28.2
1990-10-01	23.5
1991-01-01	28.6
1991-04-01	26.6
1991-07-01	22.9
1991-10-01	22.1
1992-01-01	22.2
1992-04-01	23.7
1992-07-01	24.2
1992-10-01	24.8
1993-01-01	27.6
1993-04-01	27.2
1993-07-01	27.3
1993-10-01	29.2
1994-01-01	29.1
1994-04-01	30.6
1994-07-01	31.1
1994-10-01	31.4
1995-01-01	30.3
1995-04-01	31.2
1995-07-01	30.6
1995-10-01	32.2
1996-01-01	32.0
1996-04-01	32.5
1996-07-01	32.6
1996-10-01	33.3
1997-01-01	33.9
1997-04-01	35.2
1997-07-01	36.0
1997-10-01	37.3
1998-01-01	37.7
1998-04-01	38.3
1998-07-01	39.3
1998-10-01	40.3
1999-01-01	40.4
1999-04-01	40.9
1999-07-01	40.4
1999-10-01	40.3
2000-01-01	38.9
2000-04-01	38.2
2000-07-01	37.9
2000-10-01	37.0
2001-01-01	35.6
2001-04-01	37.0
2001-07-01	35.5
2001-10-01	34.3
2002-01-01	62.8
2002-04-01	72.8
2002-07-01	66.0
2002-10-01	54.9
2003-01-01	45.3
2003-04-01	40.9
2003-07-01	39.2
2003-10-01	37.3
2004-01-01	33.8
2004-04-01	33.3
2004-07-01	32.3
2004-10-01	30.6
2005-01-01	28.5
2005-04-01	27.5
2005-07-01	26.1
2005-10-01	25.4
2006-01-01	24.9
2006-04-01	24.3
2006-07-01	23.8
2006-10-01	23.4
2007-01-01	22.9
2007-04-01	22.5
2007-07-01	22.5
2007-10-01	21.9
2008-01-01	21.2
2008-04-01	20.2
2008-07-01	20.0
2008-10-01	20.2
2009-01-01	20.5
2009-04-01	20.7
2009-07-01	20.3
2009-10-01	19.8
2010-01-01	19.1
2010-04-01	18.7
2010-07-01	18.3
2010-10-01	18.4
2011-01-01	18.1
2011-04-01	18.1
2011-07-01	18.5
2011-10-01	18.4
2012-01-01	18.1
2012-04-01	18.3
2012-07-01	18.5
2012-10-01	19.2
2013-01-01	18.9
2013-04-01	19.0
2013-07-01	19.2
2013-10-01	19.8
2014-01-01	19.5
2014-04-01	18.2
2014-07-01	17.6
2014-10-01	17.2
2015-01-01	16.9
2015-04-01	17.2
2015-07-01	17.1
2015-10-01	18.7
2016-01-01	18.4
2016-04-01	17.9
2016-07-01	18.0
2016-10-01	18.2
2017-01-01	17.8
2017-04-01	18.7
2017-07-01	19.7
2017-10-01	20.8
2018-01-01	21.0