Quarter	Percentage of GDP
1990-10-01	134.7
1991-01-01	129.2
1991-04-01	116.8
1991-07-01	116.2
1991-10-01	114.8
1992-01-01	112.5
1992-04-01	113.2
1992-07-01	111.5
1992-10-01	106.4
1993-01-01	111.2
1993-04-01	109.2
1993-07-01	109.1
1993-10-01	107.7
1994-01-01	109.0
1994-04-01	110.6
1994-07-01	111.2
1994-10-01	111.2
1995-01-01	113.2
1995-04-01	116.3
1995-07-01	115.4
1995-10-01	116.0
1996-01-01	117.0
1996-04-01	120.2
1996-07-01	119.9
1996-10-01	120.5
1997-01-01	124.2
1997-04-01	128.7
1997-07-01	128.8
1997-10-01	127.0
1998-01-01	123.8
1998-04-01	123.1
1998-07-01	123.3
1998-10-01	119.6
1999-01-01	116.6
1999-04-01	109.0
1999-07-01	107.0
1999-10-01	104.4
2000-01-01	102.6
2000-04-01	99.4
2000-07-01	104.4
2000-10-01	100.2
2001-01-01	100.8
2001-04-01	97.8
2001-07-01	96.6
2001-10-01	94.7
2002-01-01	94.1
2002-04-01	92.7
2002-07-01	91.5
2002-10-01	91.5
2003-01-01	92.2
2003-04-01	96.2
2003-07-01	96.6
2003-10-01	98.0
2004-01-01	101.3
2004-04-01	100.0
2004-07-01	101.1
2004-10-01	104.0
2005-01-01	105.4
2005-04-01	110.5
2005-07-01	109.3
2005-10-01	110.5
2006-01-01	111.1
2006-04-01	114.2
2006-07-01	116.2
2006-10-01	115.5
2007-01-01	121.6
2007-04-01	128.9
2007-07-01	133.5
2007-10-01	125.7
2008-01-01	129.7
2008-04-01	133.8
2008-07-01	136.1
2008-10-01	129.9
2009-01-01	125.6
2009-04-01	130.8
2009-07-01	133.5
2009-10-01	128.3
2010-01-01	134.4
2010-04-01	144.2
2010-07-01	156.8
2010-10-01	154.3
2011-01-01	166.9
2011-04-01	170.2
2011-07-01	172.3
2011-10-01	165.7
2012-01-01	169.5
2012-04-01	168.8
2012-07-01	168.4
2012-10-01	165.9
2013-01-01	172.6
2013-04-01	185.4
2013-07-01	190.4
2013-10-01	187.3
2014-01-01	200.8
2014-04-01	210.7
2014-07-01	210.6
2014-10-01	205.3
2015-01-01	215.4
2015-04-01	211.5
2015-07-01	206.7
2015-10-01	203.8
2016-01-01	203.7
2016-04-01	205.0
2016-07-01	206.4
2016-10-01	211.3
2017-01-01	218.5
2017-04-01	229.0
2017-07-01	229.8
2017-10-01	232.2
2018-01-01	234.8