Quarter	Average 1990 = 100
1975-03-31	149.151
1975-06-30	150.0556
1975-09-30	146.7115
1975-12-31	146.0531
1976-03-31	148.0824
1976-06-30	150.2068
1976-09-30	150.5607
1976-12-31	156.0763
1977-03-31	154.8746
1977-06-30	149.6072
1977-09-30	143.294
1977-12-31	133.1829
1978-03-31	131.3106
1978-06-30	132.4648
1978-09-30	131.8415
1978-12-31	130.5232
1979-03-31	129.8988
1979-06-30	131.3561
1979-09-30	131.9395
1979-12-31	131.9011
1980-03-31	131.4146
1980-06-30	131.5142
1980-09-30	131.7151
1980-12-31	132.7148
1981-03-31	133.6738
1981-06-30	135.1016
1981-09-30	132.3069
1981-12-31	121.3315
1982-03-31	121.2957
1982-06-30	121.3167
1982-09-30	121.9912
1982-12-31	105.4285
1983-03-31	102.8749
1983-06-30	103.8963
1983-09-30	105.0029
1983-12-31	105.0068
1984-03-31	105.5974
1984-06-30	105.7588
1984-09-30	107.2083
1984-12-31	107.7227
1985-03-31	107.1827
1985-06-30	105.7853
1985-09-30	105.6329
1985-12-31	105.47
1986-03-31	104.3134
1986-06-30	103.7664
1986-09-30	102.6125
1986-12-31	102.0843
1987-03-31	101.6597
1987-06-30	102.1725
1987-09-30	101.6515
1987-12-31	100.4451
1988-03-31	100.8192
1988-06-30	101.8168
1988-09-30	101.9123
1988-12-31	101.9418
1989-03-31	102.0481
1989-06-30	102.7015
1989-09-30	102.7995
1989-12-31	101.7675
1990-03-31	100.5986
1990-06-30	100.7974
1990-09-30	99.7363
1990-12-31	98.9051
1991-03-31	99.3197
1991-06-30	100.0379
1991-09-30	99.3336
1991-12-31	100.539
1992-03-31	101.6815
1992-06-30	102.1574
1992-09-30	103.7065
1992-12-31	97.2338
1993-03-31	84.9035
1993-06-30	84.6501
1993-09-30	81.0764
1993-12-31	79.6219
1994-03-31	82.3374
1994-06-30	82.1195
1994-09-30	79.7945
1994-12-31	81.8265
1995-03-31	80.043
1995-06-30	77.4922
1995-09-30	79.992
1995-12-31	85.9204
1996-03-31	86.774
1996-06-30	89.2826
1996-09-30	89.312
1996-12-31	89.3305
1997-03-31	85.7806
1997-06-30	83.9863
1997-09-30	85.5784
1997-12-31	86.0482
1998-03-31	84.4696
1998-06-30	86.1898
1998-09-30	83.5004
1998-12-31	79.8541
1999-03-31	82.2553
1999-06-30	81.5155
1999-09-30	82.8631
1999-12-31	82.6896
2000-03-31	83.1215
2000-06-30	84.4303
2000-09-30	82.6666
2000-12-31	79.9693
2001-03-31	78.2336
2001-06-30	76.173
2001-09-30	74.1757
2001-12-31	73.7239
2002-03-31	76.0755
2002-06-30	76.5229
2002-09-30	76.6863
2002-12-31	78.1473
2003-03-31	78.8503
2003-06-30	80.6588
2003-09-30	80.468
2003-12-31	82.2449
2004-03-31	81.3009
2004-06-30	80.814
2004-09-30	81.0036
2004-12-31	83.2144
2005-03-31	82.7521
2005-06-30	80.7842
2005-09-30	79.0663
2005-12-31	77.9253
2006-03-31	79.324
2006-06-30	80.2373
2006-09-30	81.0977
2006-12-31	82.2439
2007-03-31	82.0156
2007-06-30	81.9333
2007-09-30	81.9104
2007-12-31	82.5967
2008-03-31	82.4338
2008-06-30	83.9051
2008-09-30	82.509
2008-12-31	75.0868
2009-03-31	70.6753
2009-06-30	72.0569
2009-09-30	74.9525
2009-12-31	75.8013
2010-03-31	77.5692
2010-06-30	78.2879
2010-09-30	80.0986
2010-12-31	82.3613
2011-03-31	85.4481
2011-06-30	84.9176
2011-09-30	83.0313
2011-12-31	82.7447
2012-03-31	84.2167
2012-06-30	83.0658
2012-09-30	86.8971
2012-12-31	85.8983
2013-03-31	88.713
2013-06-30	88.2477
2013-09-30	87.6495
2013-12-31	86.3969
2014-03-31	86.5622
2014-06-30	84.3976
2014-09-30	82.3324
2014-12-31	81.4011
2015-03-31	78.4834
2015-06-30	78.5445
2015-09-30	77.9685
2015-12-31	78.968
2016-03-31	79.3915
2016-06-30	79.9249
2016-09-30	78.241
2016-12-31	76.1175
2017-03-31	77.966
2017-06-30	77.1005
2017-09-30	79.4737
2017-12-31	77.7858
2018-03-31	76.811
2018-06-30	73.6292
2018-09-30	73.0749
2018-12-31	73.3951
2019-03-31	72.4726
2019-06-30	70.9946
2019-09-30	70.7154
2019-12-31	70.5079