Quarter	Index source base
1972-07-01	10.3
1972-10-01	10.4
1973-01-01	10.6
1973-04-01	10.8
1973-07-01	11.1
1973-10-01	11.5
1974-01-01	11.8
1974-04-01	12.4
1974-07-01	12.9
1974-10-01	13.6
1975-01-01	14.1
1975-04-01	14.8
1975-07-01	15.3
1975-10-01	16.2
1976-01-01	16.6
1976-04-01	17.3
1976-07-01	17.8
1976-10-01	18.4
1977-01-01	18.8
1977-04-01	19.4
1977-07-01	19.7
1977-10-01	20.2
1978-01-01	20.5
1978-04-01	20.8
1978-07-01	21.1
1978-10-01	21.5
1979-01-01	21.8
1979-04-01	22.2
1979-07-01	22.5
1979-10-01	23.0
1980-01-01	23.4
1980-04-01	24.0
1980-07-01	24.6
1980-10-01	25.3
1981-01-01	25.8
1981-04-01	26.5
1981-07-01	27.2
1981-10-01	28.1
1982-01-01	28.7
1982-04-01	29.6
1982-07-01	30.4
1982-10-01	31.3
1983-01-01	31.7
1983-04-01	32.2
1983-07-01	32.5
1983-10-01	33.4
1984-01-01	33.9
1984-04-01	34.6
1984-07-01	35.2
1984-10-01	35.8
1985-01-01	36.3
1985-04-01	37.2
1985-07-01	38.0
1985-10-01	38.9
1986-01-01	39.6
1986-04-01	40.3
1986-07-01	41.0
1986-10-01	41.7
1987-01-01	42.5
1987-04-01	43.3
1987-07-01	44.0
1987-10-01	44.6
1988-01-01	45.3
1988-04-01	46.2
1988-07-01	48.1
1988-10-01	51.0
1989-01-01	50.5
1989-04-01	53.2
1989-07-01	56.1
1989-10-01	58.0
1990-01-01	59.1
1990-04-01	60.1
1990-07-01	60.4
1990-10-01	61.0
1991-01-01	60.1
1991-04-01	60.1
1991-07-01	58.9
1991-10-01	58.6
1992-01-01	57.2
1992-04-01	56.1
1992-07-01	55.2
1992-10-01	54.8
1993-01-01	55.1
1993-04-01	55.5
1993-07-01	55.4
1993-10-01	54.6
1994-01-01	54.7
1994-04-01	55.1
1994-07-01	55.4
1994-10-01	56.9
1995-01-01	60.0
1995-04-01	61.1
1995-07-01	61.5
1995-10-01	61.9
1996-01-01	61.7
1996-04-01	62.0
1996-07-01	61.9
1996-10-01	60.2
1997-01-01	58.4
1997-04-01	56.5
1997-07-01	55.9
1997-10-01	54.9
1998-01-01	54.5
1998-04-01	55.1
1998-07-01	55.3
1998-10-01	55.7
1999-01-01	56.1
1999-04-01	56.4
1999-07-01	57.2
1999-10-01	58.1
2000-01-01	58.8
2000-04-01	59.0
2000-07-01	62.6
2000-10-01	62.8
2001-01-01	63.1
2001-04-01	63.2
2001-07-01	64.2
2001-10-01	64.5
2002-01-01	65.0
2002-04-01	65.4
2002-07-01	66.3
2002-10-01	66.6
2003-01-01	67.5
2003-04-01	68.1
2003-07-01	69.3
2003-10-01	69.7
2004-01-01	70.4
2004-04-01	70.9
2004-07-01	71.8
2004-10-01	72.5
2005-01-01	73.2
2005-04-01	73.6
2005-07-01	74.6
2005-10-01	75.1
2006-01-01	75.6
2006-04-01	76.2
2006-07-01	77.1
2006-10-01	77.5
2007-01-01	78.3
2007-04-01	78.9
2007-07-01	80.4
2007-10-01	81.3
2008-01-01	82.8
2008-04-01	83.7
2008-07-01	85.8
2008-10-01	86.5
2009-01-01	87.3
2009-04-01	88.0
2009-07-01	90.6
2009-10-01	91.3
2010-01-01	92.6
2010-04-01	93.2
2010-07-01	95.2
2010-10-01	95.8
2011-01-01	97.1
2011-04-01	97.5
2011-07-01	99.2
2011-10-01	99.7
2012-01-01	100.3
2012-04-01	100.7
2012-07-01	103.9
2012-10-01	104.1
2013-01-01	105.4
2013-04-01	106.0
2013-07-01	108.1
2013-10-01	108.6
2014-01-01	109.2
2014-04-01	110.1
2014-07-01	110.6
2014-10-01	111.2
2015-01-01	112.1
2015-04-01	112.9
2015-07-01	113.6
2015-10-01	113.7
2016-01-01	114.0
2016-04-01	114.4
2016-07-01	115.6
2016-10-01	115.9
2017-01-01	116.8
2017-04-01	117.2
2017-07-01	119.4
2017-10-01	119.8
2018-01-01	120.6
2018-04-01	120.8
2018-07-01	121.3