Quarterly
1975-03-31 8.405
1975-06-30 8.1018
1975-09-30 7.5098
1975-12-31 7.2123
1976-03-31 7.0489
1976-06-30 6.3714
1976-09-30 6.2356
1976-12-31 5.8271
1977-03-31 6.0499
1977-06-30 6.0681
1977-09-30 6.1259
1977-12-31 6.4012
1978-03-31 6.7351
1978-06-30 6.4128
1978-09-30 6.7501
1978-12-31 6.9313
1979-03-31 6.6427
1979-06-30 6.8573
1979-09-30 7.3603
1979-12-31 7.1106
1980-03-31 7.5853
1980-06-30 7.6929
1980-09-30 8.0153
1980-12-31 8.0299
1981-03-31 7.6989
1981-06-30 7.0013
1981-09-30 6.2713
1981-12-31 6.4313
1982-03-31 6.3015
1982-06-30 6.0934
1982-09-30 5.926
1982-12-31 5.666
1983-03-31 5.2569
1983-06-30 5.3554
1983-09-30 5.2249
1983-12-31 5.1125
1984-03-31 5.0322
1984-06-30 4.9027
1984-09-30 4.5739
1984-12-31 4.3303
1985-03-31 3.9991
1985-06-30 4.5468
1985-09-30 5.0147
1985-12-31 5.2329
1986-03-31 5.2454
1986-06-30 5.5507
1986-09-30 5.5768
1986-12-31 5.3569
1987-03-31 5.7788
1987-06-30 6.1454
1987-09-30 6.0608
1987-12-31 6.5668
1988-03-31 6.7306
1988-06-30 6.8871
1988-09-30 6.3482
1988-12-31 6.709
1989-03-31 6.5452
1989-06-30 6.0892
1989-09-30 5.9813
1989-12-31 5.9356
1990-03-31 6.2035
1990-06-30 6.2808
1990-09-30 6.9818
1990-12-31 7.2991
1991-03-31 7.1625
1991-06-30 6.411
1991-09-30 6.3208
1991-12-31 6.6506
1992-03-31 6.6424
1992-06-30 6.7853
1992-09-30 7.1422
1992-12-31 5.9288
1993-03-31 5.5393
1993-06-30 5.7526
1993-09-30 5.6428
1993-12-31 5.5948
1994-03-31 5.5825
1994-06-30 5.6392
1994-09-30 5.8187
1994-12-31 5.9443
1995-03-31 5.9377
1995-06-30 5.9843
1995-09-30 5.902
1995-12-31 5.8536
1996-03-31 5.7427
1996-06-30 5.7139
1996-09-30 5.8296
1996-12-31 6.1343
1997-03-31 6.117
1997-06-30 6.1342
1997-09-30 6.0994
1997-12-31 6.2235
1998-03-31 6.1749
1998-06-30 6.2024
1998-09-30 6.2001
1998-12-31 6.2868
1999-03-31 6.1246
1999-06-30 6.0251
1999-09-30 6.0086
1999-12-31 6.1161
2000-03-31 6.021
2000-06-30 5.7401
2000-09-30 5.5456
2000-12-31 5.4218
2001-03-31 5.4704
2001-06-30 5.3267
2001-09-30 5.39
2001-12-31 5.412
2002-03-31 5.3485
2002-06-30 5.4822
2002-09-30 5.8116
2002-12-31 5.8929
2003-03-31 6.0119
2003-06-30 6.0757
2003-09-30 6.0433
2003-12-31 6.3975
2004-03-31 6.8938
2004-06-30 6.7736
2004-09-30 6.8211
2004-12-31 6.993
2005-03-31 7.0906
2005-06-30 6.9579
2005-09-30 6.6944
2005-12-31 6.5557
2006-03-31 6.5728
2006-06-30 6.8644
2006-09-30 7.0318
2006-12-31 7.1802
2007-03-31 7.33
2007-06-30 7.4517
2007-09-30 7.5784
2007-12-31 7.6482
2008-03-31 7.4167
2008-06-30 7.3915
2008-09-30 7.1018
2008-12-31 5.9075
2009-03-31 5.3793
2009-06-30 5.8252
2009-09-30 6.1528
2009-12-31 6.1291
2010-03-31 5.8439
2010-06-30 5.5914
2010-09-30 5.8166
2010-12-31 5.9295
2011-03-31 6.0134
2011-06-30 6.1075
2011-09-30 6.0346
2011-12-31 5.8955
2012-03-31 5.8931
2012-06-30 5.9382
2012-09-30 5.9248
2012-12-31 6.0221
2013-03-31 5.8198
2013-06-30 5.7595
2013-09-30 5.8147
2013-12-31 6.07
2014-03-31 6.2075
2014-06-30 6.313
2014-09-30 6.2632
2014-12-31 5.9427
2015-03-31 5.6812
2015-06-30 5.7531
2015-09-30 5.8088
2015-12-31 5.6917
2016-03-31 5.3667
2016-06-30 5.3786
2016-09-30 4.9237
2016-12-31 4.6568
2017-03-31 4.648
2017-06-30 4.8031
2017-09-30 4.9086
2017-12-31 4.9753
2018-03-31 5.2199
2018-06-30 5.1013
2018-09-30 4.8892
2018-12-31 4.8267
2019-03-31 4.8855
2019-06-30 4.8198
2019-09-30 4.6249
2019-12-31 4.8268
2020-03-31 4.8005
2020-06-30 4.6642
2020-09-30 4.8438
2020-12-31 4.9529
2021-03-31 5.173
2021-06-30 5.2454
2021-09-30 5.1679
2021-12-31 5.0573
2022-03-31 5.0322
2022-06-30 4.7048
2022-09-30 4.424
2022-12-31 4.4125
2023-03-31 4.562
2023-06-30 4.6974
2023-09-30 4.7486
2023-12-31 4.6531