Quarterly
1975-03-31 1.7957
1975-06-30 1.6927
1975-09-30 1.9624
1975-12-31 1.9481
1976-03-31 1.8811
1976-06-30 1.8069
1976-09-30 1.7181
1976-12-31 1.8012
1977-03-31 1.7918
1977-06-30 1.7798
1977-09-30 1.8015
1977-12-31 1.8883
1978-03-31 1.826
1978-06-30 1.8063
1978-09-30 1.8613
1978-12-31 1.9182
1979-03-31 1.9588
1979-06-30 2.1528
1979-09-30 2.1943
1979-12-31 2.2635
1980-03-31 2.3009
1980-06-30 2.388
1980-09-30 2.4358
1980-12-31 2.487
1981-03-31 2.4489
1981-06-30 2.2805
1981-09-30 2.2079
1981-12-31 2.322
1982-03-31 2.3311
1982-06-30 2.3475
1982-09-30 2.3636
1982-12-31 2.2082
1983-03-31 2.2707
1983-06-30 2.3411
1983-09-30 2.272
1983-12-31 2.2185
1984-03-31 2.1716
1984-06-30 2.1393
1984-09-30 2.5435
1984-12-31 2.4353
1985-03-31 2.6566
1985-06-30 2.7107
1985-09-30 2.5699
1985-12-31 2.8881
1986-03-31 2.7652
1986-06-30 2.7933
1986-09-30 2.9654
1986-12-31 2.7968
1987-03-31 2.8159
1987-06-30 2.7224
1987-09-30 2.5186
1987-12-31 2.8582
1988-03-31 2.9308
1988-06-30 2.5342
1988-09-30 2.754
1988-12-31 2.8744
1989-03-31 2.7447
1989-06-30 2.704
1989-09-30 2.7464
1989-12-31 2.716
1990-03-31 2.842
1990-06-30 2.9645
1990-09-30 3.0415
1990-12-31 3.2899
1991-03-31 2.9642
1991-06-30 2.818
1991-09-30 3.0889
1991-12-31 3.457
1992-03-31 3.1759
1992-06-30 3.4969
1992-09-30 3.3079
1992-12-31 2.9503
1993-03-31 2.8285
1993-06-30 2.7968
1993-09-30 2.7215
1993-12-31 2.6416
1994-03-31 2.6391
1994-06-30 2.5971
1994-09-30 2.6191
1994-12-31 2.4445
1995-03-31 2.4893
1995-06-30 2.3804
1995-09-30 2.4036
1995-12-31 2.3715
1996-03-31 2.2408
1996-06-30 2.2678
1996-09-30 2.2362
1996-12-31 2.4194
1997-03-31 2.3458
1997-06-30 2.4544
1997-09-30 2.5235
1997-12-31 2.8328
1998-03-31 3.0286
1998-06-30 3.2119
1998-09-30 3.3953
1998-12-31 3.1497
1999-03-31 3.0258
1999-06-30 2.9762
1999-09-30 3.1893
1999-12-31 3.0913
2000-03-31 3.2116
2000-06-30 3.2153
2000-09-30 3.6367
2000-12-31 3.377
2001-03-31 3.5061
2001-06-30 3.5043
2001-09-30 3.6152
2001-12-31 3.4949
2002-03-31 3.2358
2002-06-30 3.1427
2002-09-30 3.3523
2002-12-31 3.0774
2003-03-31 2.8519
2003-06-30 2.8175
2003-09-30 2.7956
2003-12-31 2.7278
2004-03-31 2.7613
2004-06-30 2.8526
2004-09-30 2.677
2004-12-31 2.6595
2005-03-31 2.6524
2005-06-30 2.5762
2005-09-30 2.5509
2005-12-31 2.52
2006-03-31 2.8374
2006-06-30 3.0308
2006-09-30 2.8609
2006-12-31 2.7755
2007-03-31 2.7435
2007-06-30 2.5976
2007-09-30 2.6978
2007-12-31 2.5863
2008-03-31 2.5283
2008-06-30 2.6141
2008-09-30 2.6722
2008-12-31 2.4604
2009-03-31 2.5111
2009-06-30 2.5414
2009-09-30 2.2108
2009-12-31 2.219
2010-03-31 2.1377
2010-06-30 2.1753
2010-09-30 2.1421
2010-12-31 2.0035
2011-03-31 2.1015
2011-06-30 1.9441
2011-09-30 2.0375
2011-12-31 1.9991
2012-03-31 1.9501
2012-06-30 1.9512
2012-09-30 1.9438
2012-12-31 1.9664
2013-03-31 1.8122
2013-06-30 1.9639
2013-09-30 1.9443
2013-12-31 2.011
2014-03-31 1.9213
2014-06-30 1.9528
2014-09-30 2.0798
2014-12-31 1.9916
2015-03-31 1.9796
2015-06-30 2.3261
2015-09-30 2.3675
2015-12-31 2.1653
2016-03-31 2.07
2016-06-30 1.8856
2016-09-30 1.7862
2016-12-31 1.7669
2017-03-31 1.789
2017-06-30 1.7741
2017-09-30 1.8553
2017-12-31 1.8969
2018-03-31 1.945
2018-06-30 1.9502
2018-09-30 1.9667
2018-12-31 1.9018
2019-03-31 1.9108
2019-06-30 1.8946
2019-09-30 1.9643
2019-12-31 1.9599
2020-03-31 2.0916
2020-06-30 1.92
2020-09-30 1.9552
2020-12-31 1.8852
2021-03-31 1.9695
2021-06-30 1.9781
2021-09-30 1.9548
2021-12-31 1.9726
2022-03-31 1.8927
2022-06-30 1.9529
2022-09-30 1.9745
2022-12-31 1.8968
2023-03-31 1.9757
2023-06-30 2.0751
2023-09-30 2.0311
2023-12-31 2.0134