Quarterly
1979-03-31 2.0264
1979-06-30 2.0661
1979-09-30 2.2103
1979-12-31 2.1473
1980-03-31 2.2397
1980-06-30 2.2464
1980-09-30 2.3366
1980-12-31 2.3949
1981-03-31 2.3485
1981-06-30 2.1228
1981-09-30 1.8746
1981-12-31 1.8783
1982-03-31 1.8545
1982-06-30 1.7951
1982-09-30 1.7397
1982-12-31 1.6531
1983-03-31 1.5192
1983-06-30 1.5507
1983-09-30 1.5124
1983-12-31 1.4751
1984-03-31 1.4427
1984-06-30 1.4125
1984-09-30 1.3069
1984-12-31 1.2188
1985-03-31 1.1006
1985-06-30 1.2353
1985-09-30 1.3556
1985-12-31 1.4135
1986-03-31 1.4104
1986-06-30 1.4887
1986-09-30 1.4631
1986-12-31 1.3957
1987-03-31 1.514
1987-06-30 1.6274
1987-09-30 1.5995
1987-12-31 1.7428
1988-03-31 1.7795
1988-06-30 1.8298
1988-09-30 1.673
1988-12-31 1.7633
1989-03-31 1.724
1989-06-30 1.5973
1989-09-30 1.5597
1989-12-31 1.5375
1990-03-31 1.6048
1990-06-30 1.6244
1990-09-30 1.8037
1990-12-31 1.8979
1991-03-31 1.8577
1991-06-30 1.6691
1991-09-30 1.6488
1991-12-31 1.7273
1992-03-31 1.7193
1992-06-30 1.7572
1992-09-30 1.8433
1992-12-31 1.5533
1993-03-31 1.4576
1993-06-30 1.5142
1993-09-30 1.4871
1993-12-31 1.477
1994-03-31 1.478
1994-06-30 1.5009
1994-09-30 1.5474
1994-12-31 1.5828
1995-03-31 1.5797
1995-06-30 1.5896
1995-09-30 1.5666
1995-12-31 1.5547
1996-03-31 1.5254
1996-06-30 1.5209
1996-09-30 1.5544
1996-12-31 1.6297
1997-03-31 1.6253
1997-06-30 1.6299
1997-09-30 1.615
1997-12-31 1.6458
1998-03-31 1.6318
1998-06-30 1.6392
1998-09-30 1.6374
1998-12-31 1.6646
1999-03-31 1.6294
1999-06-30 1.6065
1999-09-30 1.6046
1999-12-31 1.6312
2000-03-31 1.6057
2000-06-30 1.5348
2000-09-30 1.4833
2000-12-31 1.45
2001-03-31 1.4562
2001-06-30 1.4127
2001-09-30 1.4269
2001-12-31 1.4318
2002-03-31 1.4114
2002-06-30 1.4457
2002-09-30 1.5329
2002-12-31 1.5529
2003-03-31 1.5842
2003-06-30 1.6011
2003-09-30 1.592
2003-12-31 1.6819
2004-03-31 1.81
2004-06-30 1.7778
2004-09-30 1.7918
2004-12-31 1.8431
2005-03-31 1.8738
2005-06-30 1.8432
2005-09-30 1.7804
2005-12-31 1.7478
2006-03-31 1.7559
2006-06-30 1.8362
2006-09-30 1.8801
2006-12-31 1.9159
2007-03-31 1.9524
2007-06-30 1.9824
2007-09-30 2.0122
2007-12-31 2.0335
2008-03-31 1.9545
2008-06-30 1.9437
2008-09-30 1.8702
2008-12-31 1.5689
2009-03-31 1.4336
2009-06-30 1.5529
2009-09-30 1.6404
2009-12-31 1.6326
2010-03-31 1.5565
2010-06-30 1.4906
2010-09-30 1.5494
2010-12-31 1.5786
2011-03-31 1.5996
2011-06-30 1.6244
2011-09-30 1.6061
2011-12-31 1.5692
2012-03-31 1.5689
2012-06-30 1.5818
2012-09-30 1.5791
2012-12-31 1.6049
2013-03-31 1.5506
2013-06-30 1.5343
2013-09-30 1.5486
2013-12-31 1.6162
2014-03-31 1.6528
2014-06-30 1.6806
2014-09-30 1.6668
2014-12-31 1.5813
2015-03-31 1.5121
2015-06-30 1.5323
2015-09-30 1.5473
2015-12-31 1.5172
2016-03-31 1.4319
2016-06-30 1.4359
2016-09-30 1.3173
2016-12-31 1.2466
2017-03-31 1.2452
2017-06-30 1.2877
2017-09-30 1.3167
2017-12-31 1.3349
2018-03-31 1.4023
2018-06-30 1.3719
2018-09-30 1.3148
2018-12-31 1.2989
2019-03-31 1.3143
2019-06-30 1.296
2019-09-30 1.2421
2019-12-31 1.2939
2020-03-31 1.2844
2020-06-30 1.2429
2020-09-30 1.2929
2020-12-31 1.322
2021-03-31 1.3801
2021-06-30 1.3991