Quarterly
1975-03-31 0.7442
1975-06-30 0.7591
1975-09-30 0.8739
1975-12-31 0.9576
1976-03-31 0.966
1976-06-30 1.0086
1976-09-30 1.0081
1976-12-31 1.0571
1977-03-31 1.0497
1977-06-30 1.0402
1977-09-30 1.0318
1977-12-31 1.0067
1978-03-31 0.9796
1978-06-30 0.9853
1978-09-30 0.9529
1978-12-31 0.9429
1979-03-31 0.9482
1979-06-30 0.9601
1979-09-30 0.9875
1979-12-31 1.0222
1980-03-31 1.0269
1980-06-30 1.0299
1980-09-30 1.0179
1980-12-31 1.0333
1981-03-31 1.0661
1981-06-30 1.1368
1981-09-30 1.2058
1981-12-31 1.2083
1982-03-31 1.2601
1982-06-30 1.3137
1982-09-30 1.3657
1982-12-31 1.395
1983-03-31 1.4256
1983-06-30 1.5177
1983-09-30 1.5323
1983-12-31 1.5215
1984-03-31 1.5199
1984-06-30 1.5396
1984-09-30 1.9427
1984-12-31 2.0515
1985-03-31 2.1806
1985-06-30 2.1956
1985-09-30 1.9215
1985-12-31 1.7974
1986-03-31 1.9052
1986-06-30 1.7947
1986-09-30 1.985
1986-12-31 1.9604
1987-03-31 1.8216
1987-06-30 1.7228
1987-09-30 1.6516
1987-12-31 1.5742
1988-03-31 1.5134
1988-06-30 1.4612
1988-09-30 1.5551
1988-12-31 1.5809
1989-03-31 1.6166
1989-06-30 1.6774
1989-09-30 1.7055
1989-12-31 1.6971
1990-03-31 1.6869
1990-06-30 1.7301
1990-09-30 1.6466
1990-12-31 1.6482
1991-03-31 1.6758
1991-06-30 1.7121
1991-09-30 1.745
1991-12-31 1.7861
1992-03-31 1.8386
1992-06-30 1.8534
1992-09-30 1.8426
1992-12-31 1.9046
1993-03-31 1.9212
1993-06-30 1.8492
1993-09-30 1.8161
1993-12-31 1.8114
1994-03-31 1.7558
1994-06-30 1.7181
1994-09-30 1.6618
1994-12-31 1.608
1995-03-31 1.5614
1995-06-30 1.4968
1995-09-30 1.5096
1995-12-31 1.5286
1996-03-31 1.4867
1996-06-30 1.4667
1996-09-30 1.4458
1996-12-31 1.4178
1997-03-31 1.4347
1997-06-30 1.4484
1997-09-30 1.5459
1997-12-31 1.6196
1998-03-31 1.7297
1998-06-30 1.8745
1998-09-30 1.9662
1998-12-31 1.8999
1999-03-31 1.8588
1999-06-30 1.8436
1999-09-30 1.9024
1999-12-31 1.9554
2000-03-31 2.0109
2000-06-30 2.0934
2000-09-30 2.2683
2000-12-31 2.4497
2001-03-31 2.3157
2001-06-30 2.4132
2001-09-30 2.3866
2001-12-31 2.4077
2002-03-31 2.3518
2002-06-30 2.1612
2002-09-30 2.1207
2002-12-31 2.018
2003-03-31 1.8213
2003-06-30 1.7563
2003-09-30 1.7102
2003-12-31 1.6008
2004-03-31 1.4832
2004-06-30 1.5932
2004-09-30 1.5293
2004-12-31 1.4297
2005-03-31 1.3939
2005-06-30 1.3981
2005-09-30 1.4467
2005-12-31 1.4406
2006-03-31 1.5095
2006-06-30 1.604
2006-09-30 1.5747
2006-12-31 1.4854
2007-03-31 1.437
2007-06-30 1.3477
2007-09-30 1.3468
2007-12-31 1.3098
2008-03-31 1.267
2008-06-30 1.2892
2008-09-30 1.4046
2008-12-31 1.7359
2009-03-31 1.8805
2009-06-30 1.6571
2009-09-30 1.4857
2009-12-31 1.3731
2010-03-31 1.4111
2010-06-30 1.4291
2010-09-30 1.3918
2010-12-31 1.3185
2011-03-31 1.3239
2011-06-30 1.2508
2011-09-30 1.2031
2011-12-31 1.2881
2012-03-31 1.222
2012-06-30 1.266
2012-09-30 1.2366
2012-12-31 1.2152
2013-03-31 1.1982
2013-06-30 1.2192
2013-09-30 1.254
2013-12-31 1.2083
2014-03-31 1.1949
2014-06-30 1.1616
2014-09-30 1.1875
2014-12-31 1.2779
2015-03-31 1.331
2015-06-30 1.3711
2015-09-30 1.5361
2015-12-31 1.5013
2016-03-31 1.5078
2016-06-30 1.447
2016-09-30 1.3838
2016-12-31 1.406
2017-03-31 1.4059
2017-06-30 1.418
2017-09-30 1.3692
2017-12-31 1.4364
2018-03-31 1.3745
2018-06-30 1.4208
2018-09-30 1.4955
2018-12-31 1.4923
2019-03-31 1.4673
2019-06-30 1.5095
2019-09-30 1.5409
2019-12-31 1.5536
2020-03-31 1.5783
2020-06-30 1.6173
2020-09-30 1.5115
2020-12-31 1.4581
2021-03-31 1.3917
2021-06-30 1.3982
2021-09-30 1.428
2021-12-31 1.4387
2022-03-31 1.4779
2022-06-30 1.5424
2022-09-30 1.6318
2022-12-31 1.6608
2023-03-31 1.5886
2023-06-30 1.6182
2023-09-30 1.6533
2023-12-31 1.6598