Quarter	Percentage of GDP
1999-01-01	72.7
1999-04-01	73.1
1999-07-01	74.7
1999-10-01	74.1
2000-01-01	76.4
2000-04-01	79.4
2000-07-01	78.7
2000-10-01	75.7
2001-01-01	76.1
2001-04-01	75.5
2001-07-01	80.3
2001-10-01	79.3
2002-01-01	83.2
2002-04-01	87.2
2002-07-01	91.2
2002-10-01	91.7
2003-01-01	95.4
2003-04-01	95.5
2003-07-01	95.4
2003-10-01	94.7
2004-01-01	97.3
2004-04-01	95.1
2004-07-01	93.2
2004-10-01	88.6
2005-01-01	89.4
2005-04-01	91.5
2005-07-01	91.1
2005-10-01	91.6
2006-01-01	94.3
2006-04-01	95.7
2006-07-01	97.3
2006-10-01	98.3
2007-01-01	99.2
2007-04-01	98.7
2007-07-01	100.4
2007-10-01	101.6
2008-01-01	101.7
2008-04-01	102.6
2008-07-01	106.0
2008-10-01	116.8
2009-01-01	122.4
2009-04-01	120.7
2009-07-01	121.6
2009-10-01	120.1
2010-01-01	121.8
2010-04-01	125.9
2010-07-01	127.1
2010-10-01	126.5
2011-01-01	126.3
2011-04-01	127.4
2011-07-01	130.6
2011-10-01	131.2
2012-01-01	131.0
2012-04-01	132.7
2012-07-01	132.6
2012-10-01	134.3
2013-01-01	136.6
2013-04-01	138.5
2013-07-01	138.7
2013-10-01	137.2
2014-01-01	130.2
2014-04-01	132.3
2014-07-01	133.8
2014-10-01	136.1
2015-01-01	137.9
2015-04-01	137.6
2015-07-01	139.1
2015-10-01	137.7
2016-01-01	139.0
2016-04-01	141.5
2016-07-01	140.2
2016-10-01	142.8
2017-01-01	140.6
2017-04-01	139.3
2017-07-01	136.6
2017-10-01	134.3
2018-01-01	135.0