Quarter	Percent
1979-03-31	-1.1755
1979-06-30	-1.5028
1979-09-30	-2.3436
1979-12-31	-0.9952
1980-03-31	-1.4478
1980-06-30	-3.9761
1980-09-30	-4.5331
1980-12-31	0.7731
1981-03-31	3.9033
1981-06-30	4.5669
1981-09-30	3.5952
1981-12-31	-0.4973
1982-03-31	0.9303
1982-06-30	1.592
1982-09-30	1.4537
1982-12-31	0.3584
1983-03-31	-1.1087
1983-06-30	-0.3856
1983-09-30	0.3208
1983-12-31	0.4243
1984-03-31	0.7402
1984-06-30	1.6528
1984-09-30	0.768
1984-12-31	0.0991
1985-03-31	-1.4919
1985-06-30	-2.2484
1985-09-30	-2.0197
1985-12-31	-2.2089
1986-03-31	-2.8636
1986-06-30	-2.0368
1986-09-30	-2.5994
1986-12-31	-3.4677
1987-03-31	-2.9108
1987-06-30	-1.3615
1987-09-30	-1.8822
1987-12-31	-1.0714
1988-03-31	-1.7761
1988-06-30	-0.9182
1988-09-30	-2.2135
1988-12-31	-2.8108
1989-03-31	-2.3737
1989-06-30	-2.8603
1989-09-30	-3.7419
1989-12-31	-4.7487
1990-03-31	-5.172
1990-06-30	-5.1739
1990-09-30	-5.7934
1990-12-31	-4.8289
1991-03-31	-5.2024
1991-06-30	-4.0298
1991-09-30	-3.6506
1991-12-31	-4.5945
1992-03-31	-5.2026
1992-06-30	-5.2351
1992-09-30	-6.104
1992-12-31	-2.7511
1993-03-31	-1.9545
1993-06-30	-1.9789
1993-09-30	-1.7552
1993-12-31	-1.443
1994-03-31	-1.0635
1994-06-30	-0.4109
1994-09-30	-0.4101
1994-12-31	-0.2235
1995-03-31	-0.3491
1995-06-30	-0.6199
1995-09-30	-0.7267
1995-12-31	-0.622
1996-03-31	-0.599
1996-06-30	-0.2793
1996-09-30	-0.0188
1996-12-31	-0.612
1997-03-31	-0.5899
1997-06-30	-0.5849
1997-09-30	-1.1368
1997-12-31	-1.348
1998-03-31	-1.4594
1998-06-30	-1.4525
1998-09-30	-1.5656
1998-12-31	-1.1645
1999-03-31	-0.3513
1999-06-30	0.0034
1999-09-30	0.2582
1999-12-31	0.0472
2000-03-31	0.0348
2000-06-30	0.4345
2000-09-30	0.4641
2000-12-31	0.4389
2001-03-31	-0.2371
2001-06-30	-0.7597
2001-09-30	-1.0359
2001-12-31	-1.3822
2002-03-31	-1.4826
2002-06-30	-1.609
2002-09-30	-1.6785
2002-12-31	-1.8448
2003-03-31	-1.8874
2003-06-30	-1.8971
2003-09-30	-1.9407
2003-12-31	-2.3945
2004-03-31	-2.827
2004-06-30	-2.8445
2004-09-30	-2.7045
2004-12-31	-2.1611
2005-03-31	-1.6902
2005-06-30	-1.2124
2005-09-30	-0.4556
2005-12-31	-0.0065
2006-03-31	0.3346
2006-06-30	0.5928
2006-09-30	0.5141
2006-12-31	0.122
2007-03-31	-0.2156
2007-06-30	-0.4447
2007-09-30	-0.8964
2007-12-31	-1.21
2008-03-31	-2.3519
2008-06-30	-2.713
2008-09-30	-2.3253
2008-12-31	-0.5362
2009-03-31	-0.0547
2009-06-30	-0.0362
2009-09-30	-0.0248
2009-12-31	-0.1613
2010-03-31	-0.1831
2010-06-30	-0.0305
2010-09-30	-0.1565
2010-12-31	-0.2492
2011-03-31	-0.3879
2011-06-30	-0.4233
2011-09-30	-0.3028
2011-12-31	-0.2787
2012-03-31	-0.2458
2012-06-30	-0.1532
2012-09-30	-0.0706
2012-12-31	-0.092
2013-03-31	-0.1266
2013-06-30	-0.1499
2013-09-30	-0.1849
2013-12-31	-0.2279
2014-03-31	-0.2336
2014-06-30	-0.2652
2014-09-30	-0.3108
2014-12-31	-0.2498
2015-03-31	-0.1759
2015-06-30	-0.1793
2015-09-30	-0.1505
2015-12-31	-0.0101
2016-03-31	0.1198
2016-06-30	0.174
2016-09-30	0.4604
2016-12-31	0.513
2017-03-31	0.5916
2017-06-30	0.7023
2017-09-30	0.7759
2017-12-31	0.8294
2018-03-31	1.0421
2018-06-30	1.1661
2018-09-30	1.1229
2018-12-31	1.191
2019-03-31	1.1704
2019-06-30	1.0848
2019-09-30	0.902
2019-12-31	0.7028
2020-03-31	0.5173
2020-06-30	0.1113
2020-09-30	0.149
2020-12-31	0.1563
2021-03-31	0.0988
2021-06-30	0.0475