Quarter	Percentage of GDP
1970-10-01	89.2
1971-01-01	85.4
1971-04-01	82.5
1971-07-01	81.2
1971-10-01	81.1
1972-01-01	80.8
1972-04-01	81.5
1972-07-01	82.2
1972-10-01	82.9
1973-01-01	83.2
1973-04-01	83.8
1973-07-01	83.9
1973-10-01	83.0
1974-01-01	82.3
1974-04-01	80.7
1974-07-01	80.3
1974-10-01	79.8
1975-01-01	80.5
1975-04-01	80.5
1975-07-01	81.1
1975-10-01	82.3
1976-01-01	82.9
1976-04-01	83.7
1976-07-01	83.2
1976-10-01	83.9
1977-01-01	83.2
1977-04-01	84.0
1977-07-01	85.7
1977-10-01	88.8
1978-01-01	87.6
1978-04-01	87.5
1978-07-01	87.8
1978-10-01	88.9
1979-01-01	86.9
1979-04-01	85.8
1979-07-01	85.8
1979-10-01	87.4
1980-01-01	87.4
1980-04-01	88.1
1980-07-01	88.0
1980-10-01	87.3
1981-01-01	86.9
1981-04-01	87.4
1981-07-01	88.5
1981-10-01	89.2
1982-01-01	90.7
1982-04-01	92.0
1982-07-01	93.5
1982-10-01	93.4
1983-01-01	94.4
1983-04-01	94.7
1983-07-01	95.5
1983-10-01	94.4
1984-01-01	93.9
1984-04-01	93.9
1984-07-01	94.8
1984-10-01	95.3
1985-01-01	96.1
1985-04-01	95.8
1985-07-01	97.0
1985-10-01	99.4
1986-01-01	100.1
1986-04-01	102.5
1986-07-01	102.6
1986-10-01	102.4
1987-01-01	101.9
1987-04-01	103.2
1987-07-01	105.9
1987-10-01	108.0
1988-01-01	107.5
1988-04-01	107.9
1988-07-01	107.9
1988-10-01	114.2
1989-01-01	114.9
1989-04-01	115.9
1989-07-01	116.9
1989-10-01	115.4
1990-01-01	117.4
1990-04-01	122.1
1990-07-01	126.6
1990-10-01	128.8
1991-01-01	130.7
1991-04-01	133.6
1991-07-01	138.8
1991-10-01	141.7
1992-01-01	147.3
1992-04-01	153.3
1992-07-01	159.7
1992-10-01	163.5
1993-01-01	159.8
1993-04-01	156.2
1993-07-01	151.9
1993-10-01	145.3
1994-01-01	144.9
1994-04-01	142.9
1994-07-01	139.9
1994-10-01	136.7
1995-01-01	132.5
1995-04-01	127.9
1995-07-01	124.2
1995-10-01	118.4
1996-01-01	117.1
1996-04-01	116.8
1996-07-01	115.8
1996-10-01	115.3
1997-01-01	116.5
1997-04-01	117.0
1997-07-01	117.6
1997-10-01	116.7
1998-01-01	114.1
1998-04-01	112.3
1998-07-01	110.3
1998-10-01	108.7
1999-01-01	111.8
1999-04-01	114.6
1999-07-01	113.8
1999-10-01	112.3
2000-01-01	113.8
2000-04-01	115.3
2000-07-01	121.1
2000-10-01	121.9
2001-01-01	121.9
2001-04-01	122.3
2001-07-01	120.5
2001-10-01	117.5
2002-01-01	124.8
2002-04-01	123.2
2002-07-01	122.3
2002-10-01	119.7
2003-01-01	120.1
2003-04-01	123.3
2003-07-01	124.2
2003-10-01	125.5
2004-01-01	127.0
2004-04-01	129.2
2004-07-01	129.3
2004-10-01	129.2
2005-01-01	129.7
2005-04-01	132.7
2005-07-01	132.6
2005-10-01	134.2
2006-01-01	137.4
2006-04-01	140.8
2006-07-01	142.2
2006-10-01	140.2
2007-01-01	141.4
2007-04-01	143.4
2007-07-01	143.7
2007-10-01	145.2
2008-01-01	145.2
2008-04-01	149.4
2008-07-01	152.6
2008-10-01	156.6
2009-01-01	161.8
2009-04-01	167.7
2009-07-01	165.3
2009-10-01	165.9
2010-01-01	169.9
2010-04-01	173.3
2010-07-01	173.4
2010-10-01	170.0
2011-01-01	168.9
2011-04-01	168.8
2011-07-01	168.4
2011-10-01	169.2
2012-01-01	170.2
2012-04-01	170.8
2012-07-01	171.5
2012-10-01	172.6
2013-01-01	177.5
2013-04-01	177.3
2013-07-01	177.1
2013-10-01	177.1
2014-01-01	176.2
2014-04-01	176.7
2014-07-01	177.2
2014-10-01	183.8
2015-01-01	188.5
2015-04-01	192.1
2015-07-01	194.9
2015-10-01	193.2
2016-01-01	190.9
2016-04-01	188.3
2016-07-01	185.6
2016-10-01	182.7
2017-01-01	185.1
2017-04-01	182.6
2017-07-01	182.0
2017-10-01	180.2
2018-01-01	180.2