Quarter	Index source base
1972-07-01	29.9
1972-10-01	29.9
1973-01-01	29.9
1973-04-01	29.9
1973-07-01	29.9
1973-10-01	29.9
1974-01-01	29.9
1974-04-01	29.9
1974-07-01	29.9
1974-10-01	36.4
1975-01-01	36.4
1975-04-01	36.4
1975-07-01	36.4
1975-10-01	51.3
1976-01-01	51.3
1976-04-01	51.4
1976-07-01	51.4
1976-10-01	51.9
1977-01-01	51.9
1977-04-01	51.9
1977-07-01	51.9
1977-10-01	52.6
1978-01-01	52.5
1978-04-01	52.5
1978-07-01	53.6
1978-10-01	54.3
1979-01-01	53.8
1979-04-01	53.8
1979-07-01	53.8
1979-10-01	54.7
1980-01-01	54.9
1980-04-01	55.7
1980-07-01	55.7
1980-10-01	55.7
1981-01-01	55.7
1981-04-01	55.1
1981-07-01	56.4
1981-10-01	59.1
1982-01-01	60.9
1982-04-01	61.8
1982-07-01	63.6
1982-10-01	66.1
1983-01-01	66.1
1983-04-01	66.1
1983-07-01	66.1
1983-10-01	72.5
1984-01-01	72.6
1984-04-01	72.6
1984-07-01	72.6
1984-10-01	72.6
1985-01-01	74.8
1985-04-01	76.4
1985-07-01	76.4
1985-10-01	77.9
1986-01-01	78.5
1986-04-01	78.5
1986-07-01	79.1
1986-10-01	80.8
1987-01-01	81.4
1987-04-01	81.6
1987-07-01	86.2
1987-10-01	87.8
1988-01-01	87.3
1988-04-01	87.3
1988-07-01	88.2
1988-10-01	90.4
1989-01-01	89.3
1989-04-01	87.4
1989-07-01	87.4
1989-10-01	88.2
1990-01-01	88.3
1990-04-01	88.4
1990-07-01	90.4
1990-10-01	90.4
1991-01-01	90.4
1991-04-01	90.5
1991-07-01	94.1
1991-10-01	94.1
1992-01-01	94.9
1992-04-01	94.2
1992-07-01	94.1
1992-10-01	94.4
1993-01-01	94.4
1993-04-01	93.7
1993-07-01	93.2
1993-10-01	93.0
1994-01-01	94.0
1994-04-01	94.0
1994-07-01	94.0
1994-10-01	95.0
1995-01-01	95.0
1995-04-01	94.9
1995-07-01	94.9
1995-10-01	94.9
1996-01-01	94.1
1996-04-01	94.0
1996-07-01	94.0
1996-10-01	93.6
1997-01-01	93.7
1997-04-01	93.7
1997-07-01	93.8
1997-10-01	94.1
1998-01-01	94.1
1998-04-01	93.4
1998-07-01	92.6
1998-10-01	91.7
1999-01-01	89.1
1999-04-01	88.9
1999-07-01	86.0
1999-10-01	85.7
2000-01-01	85.9
2000-04-01	87.0
2000-07-01	93.0
2000-10-01	92.4
2001-01-01	92.0
2001-04-01	91.4
2001-07-01	91.2
2001-10-01	92.8
2002-01-01	92.9
2002-04-01	93.6
2002-07-01	95.1
2002-10-01	95.5
2003-01-01	95.8
2003-04-01	95.9
2003-07-01	96.6
2003-10-01	96.8
2004-01-01	96.9
2004-04-01	97.3
2004-07-01	97.7
2004-10-01	97.9
2005-01-01	98.3
2005-04-01	97.4
2005-07-01	96.7
2005-10-01	96.0
2006-01-01	96.4
2006-04-01	96.5
2006-07-01	97.1
2006-10-01	97.5
2007-01-01	97.7
2007-04-01	97.9
2007-07-01	97.9
2007-10-01	97.9
2008-01-01	97.9
2008-04-01	97.9
2008-07-01	98.1
2008-10-01	98.5
2009-01-01	98.9
2009-04-01	99.1
2009-07-01	99.1
2009-10-01	99.1
2010-01-01	99.0
2010-04-01	98.9
2010-07-01	98.7
2010-10-01	98.7
2011-01-01	98.8
2011-04-01	99.3
2011-07-01	99.2
2011-10-01	100.3
2012-01-01	100.4
2012-04-01	100.1
2012-07-01	100.6
2012-10-01	101.9
2013-01-01	101.9
2013-04-01	102.3
2013-07-01	102.4
2013-10-01	103.6
2014-01-01	103.8
2014-04-01	102.0
2014-07-01	100.6
2014-10-01	100.5
2015-01-01	99.1
2015-04-01	98.5
2015-07-01	96.5
2015-10-01	94.2
2016-01-01	92.8
2016-04-01	91.4
2016-07-01	89.3
2016-10-01	88.6
2017-01-01	88.3
2017-04-01	87.9
2017-07-01	86.7
2017-10-01	85.6
2018-01-01	85.3
2018-04-01	84.2
2018-07-01	83.0