Quarter	Percentage of GDP
1997-10-01	92.2
1998-01-01	96.3
1998-04-01	94.0
1998-07-01	90.9
1998-10-01	89.9
1999-01-01	93.0
1999-04-01	92.9
1999-07-01	88.2
1999-10-01	93.0
2000-01-01	100.7
2000-04-01	103.8
2000-07-01	105.1
2000-10-01	107.3
2001-01-01	107.0
2001-04-01	104.4
2001-07-01	104.1
2001-10-01	109.6
2002-01-01	102.0
2002-04-01	102.5
2002-07-01	106.2
2002-10-01	110.1
2003-01-01	104.4
2003-04-01	106.6
2003-07-01	102.9
2003-10-01	103.2
2004-01-01	104.7
2004-04-01	105.6
2004-07-01	106.5
2004-10-01	107.3
2005-01-01	103.0
2005-04-01	110.0
2005-07-01	111.4
2005-10-01	109.6
2006-01-01	113.1
2006-04-01	109.4
2006-07-01	110.2
2006-10-01	108.7
2007-01-01	110.1
2007-04-01	105.2
2007-07-01	105.0
2007-10-01	105.6
2008-01-01	106.7
2008-04-01	103.8
2008-07-01	106.6
2008-10-01	108.3
2009-01-01	117.0
2009-04-01	124.7
2009-07-01	130.2
2009-10-01	124.5
2010-01-01	125.9
2010-04-01	111.0
2010-07-01	118.5
2010-10-01	117.9
2011-01-01	124.5
2011-04-01	118.0
2011-07-01	114.1
2011-10-01	100.4
2012-01-01	90.3
2012-04-01	105.8
2012-07-01	129.9
2012-10-01	151.5
2013-01-01	153.0
2013-04-01	162.1
2013-07-01	165.3
2013-10-01	170.0
2014-01-01	174.4
2014-04-01	177.9
2014-07-01	176.0
2014-10-01	172.3
2015-01-01	164.8
2015-04-01	163.9
2015-07-01	166.2
2015-10-01	172.3
2016-01-01	171.4
2016-04-01	175.8
2016-07-01	173.8
2016-10-01	177.3
2017-01-01	174.6
2017-04-01	173.6
2017-07-01	175.5
2017-10-01	182.4
2018-01-01	182.6