Quarter	Average 1990 = 100
1975-03-31	149.2996
1975-06-30	151.4388
1975-09-30	144.5873
1975-12-31	146.8465
1976-03-31	149.0268
1976-06-30	149.9284
1976-09-30	154.5003
1976-12-31	157.3977
1977-03-31	155.4612
1977-06-30	147.9798
1977-09-30	135.2331
1977-12-31	130.7802
1978-03-31	131.2519
1978-06-30	132.563
1978-09-30	130.4513
1978-12-31	130.236
1979-03-31	129.9921
1979-06-30	131.5967
1979-09-30	132.0985
1979-12-31	131.4948
1980-03-31	131.7919
1980-06-30	131.2784
1980-09-30	132.7083
1980-12-31	132.8936
1981-03-31	134.5095
1981-06-30	135.1039
1981-09-30	121.9357
1981-12-31	121.1521
1982-03-31	121.2127
1982-06-30	121.4929
1982-09-30	122.089
1982-12-31	102.4274
1983-03-31	103.7213
1983-06-30	104.4699
1983-09-30	104.8689
1983-12-31	105.2786
1984-03-31	106.0865
1984-06-30	105.9818
1984-09-30	108.4615
1984-12-31	107.2282
1985-03-31	105.8805
1985-06-30	106.1797
1985-09-30	105.143
1985-12-31	104.6971
1986-03-31	104.3104
1986-06-30	103.2039
1986-09-30	102.1598
1986-12-31	101.52
1987-03-31	102.3229
1987-06-30	102.0735
1987-09-30	101.268
1987-12-31	99.778
1988-03-31	101.1504
1988-06-30	102.2387
1988-09-30	102.4358
1988-12-31	102.0034
1989-03-31	102.3119
1989-06-30	102.8386
1989-09-30	102.7007
1989-12-31	100.4086
1990-03-31	101.2971
1990-06-30	100.3909
1990-09-30	99.4979
1990-12-31	98.967
1991-03-31	99.8884
1991-06-30	98.892
1991-09-30	99.6991
1991-12-31	102.3545
1992-03-31	101.6963
1992-06-30	103.0116
1992-09-30	104.7182
1992-12-31	88.8359
1993-03-31	81.7697
1993-06-30	83.8593
1993-09-30	79.4458
1993-12-31	79.8959
1994-03-31	82.357
1994-06-30	80.7521
1994-09-30	80.9345
1994-12-31	81.7271
1995-03-31	75.9723
1995-06-30	77.1297
1995-09-30	82.7069
1995-12-31	87.0283
1996-03-31	88.3891
1996-06-30	90.2503
1996-09-30	90.312
1996-12-31	87.4467
1997-03-31	84.3418
1997-06-30	84.2823
1997-09-30	87.0288
1997-12-31	84.5657
1998-03-31	85.7457
1998-06-30	84.9134
1998-09-30	81.7892
1998-12-31	78.7228
1999-03-31	82.2056
1999-06-30	82.5097
1999-09-30	82.5717
1999-12-31	82.5918
2000-03-31	84.48
2000-06-30	83.8545
2000-09-30	81.0701
2000-12-31	79.5036
2001-03-31	76.6074
2001-06-30	74.8239
2001-09-30	72.0051
2001-12-31	74.8259
2002-03-31	76.9232
2002-06-30	78.2185
2002-09-30	77.2706
2002-12-31	78.4147
2003-03-31	78.9282
2003-06-30	80.5128
2003-09-30	82.0908
2003-12-31	82.6218
2004-03-31	79.9461
2004-06-30	80.8978
2004-09-30	82.4993
2004-12-31	83.8025
2005-03-31	81.9348
2005-06-30	78.1413
2005-09-30	79.3246
2005-12-31	78.7667
2006-03-31	78.9236
2006-06-30	81.3524
2006-09-30	80.7074
2006-12-31	83.6468
2007-03-31	80.9515
2007-06-30	81.83
2007-09-30	82.9767
2007-12-31	81.6821
2008-03-31	83.6279
2008-06-30	83.0577
2008-09-30	78.8353
2008-12-31	71.7974
2009-03-31	71.0796
2009-06-30	71.6598
2009-09-30	76.7593
2009-12-31	76.0216
2010-03-31	78.9276
2010-06-30	78.0243
2010-09-30	82.8234
2010-12-31	83.5719
2011-03-31	85.5837
2011-06-30	83.943
2011-09-30	81.6617
2011-12-31	83.4757
2012-03-31	84.736
2012-06-30	84.2967
2012-09-30	87.362
2012-12-31	86.9475
2013-03-31	89.8412
2013-06-30	86.4641
2013-09-30	87.6536
2013-12-31	87.0958
2014-03-31	85.8063
2014-06-30	83.2873
2014-09-30	82.4816
2014-12-31	80.2206
2015-03-31	78.5431
2015-06-30	79.1479
2015-09-30	79.021
2015-12-31	80.2171
2016-03-31	80.6669
2016-06-30	78.7335
2016-09-30	77.388
2016-12-31	77.5478
2017-03-31	77.6553
2017-06-30	78.4666
2017-09-30	78.7748
2017-12-31	77.8169
2018-03-31	74.2741
2018-06-30	72.7121
2018-09-30	73.5415
2018-12-31	74.0898
2019-03-31	72.2222
2019-06-30	71.5547
2019-09-30	69.9606
2019-12-31	71.8177