Quarterly
1975-03-31 701.8287
1975-06-30 645.4247
1975-09-30 618.3859
1975-12-31 617.1872
1976-03-31 573.5425
1976-06-30 531.6975
1976-09-30 478.3277
1976-12-31 499.1409
1977-03-31 477.2762
1977-06-30 460.1535
1977-09-30 460.641
1977-12-31 459.1929
1978-03-31 412.0781
1978-06-30 378.8908
1978-09-30 372.6723
1978-12-31 396.3622
1979-03-31 433.4277
1979-06-30 472.2361
1979-09-30 494.1288
1979-12-31 533.2213
1980-03-31 540.9351
1980-06-30 518.1158
1980-09-30 504.1701
1980-12-31 485.9348
1981-03-31 472.9499
1981-06-30 438.8925
1981-09-30 420.3981
1981-12-31 419.5601
1982-03-31 441.5808
1982-06-30 443.3669
1982-09-30 454.1796
1982-12-31 380.9213
1983-03-31 353.9839
1983-06-30 367.1531
1983-09-30 352.2968
1983-12-31 336.2832
1984-03-31 323.2564
1984-06-30 322.0534
1984-09-30 305.7112
1984-12-31 291.2949
1985-03-31 309.345
1985-06-30 325.8483
1985-09-30 304.714
1985-12-31 289.3891
1986-03-31 265.4488
1986-06-30 250.8959
1986-09-30 223.4959
1986-12-31 234.7213
1987-03-31 234.4859
1987-06-30 236.8279
1987-09-30 238.1598
1987-12-31 228.327
1988-03-31 233.9042
1988-06-30 228.1447
1988-09-30 226.885
1988-12-31 225.9096
1989-03-31 223.7501
1989-06-30 223.2598
1989-09-30 225.8019
1989-12-31 231.8775
1990-03-31 259.7422
1990-06-30 265.3496
1990-09-30 258.3535
1990-12-31 261.9296
1991-03-31 245.737
1991-06-30 223.2806
1991-09-30 232.729
1991-12-31 233.1948
1992-03-31 231.1887
1992-06-30 239.5306
1992-09-30 213.1867
1992-12-31 189.072
1993-03-31 172.9117
1993-06-30 159.3081
1993-09-30 158.3597
1993-12-31 164.9744
1994-03-31 152.6066
1994-06-30 152.1595
1994-09-30 156.0639
1994-12-31 156.012
1995-03-31 140.6266
1995-06-30 135.1067
1995-09-30 156.2086
1995-12-31 159.8256
1996-03-31 163.044
1996-06-30 170.3943
1996-09-30 174.167
1996-12-31 198.6776
1997-03-31 201.5377
1997-06-30 190.4656
1997-09-30 194.9829
1997-12-31 214.0864
1998-03-31 223.1774
1998-06-30 231.4212
1998-09-30 231.4652
1998-12-31 187.6493
1999-03-31 191.1409
1999-06-30 190.7915
1999-09-30 175.3005
1999-12-31 165.0169
2000-03-31 163.4283
2000-06-30 160.1161
2000-09-30 159.7155
2000-12-31 170.8486
2001-03-31 178.1114
2001-06-30 175.4744
2001-09-30 175.1139
2001-12-31 190.6405
2002-03-31 188.7639
2002-06-30 182.8044
2002-09-30 191.4295
2002-12-31 191.051
2003-03-31 187.419
2003-06-30 198.0858
2003-09-30 185.6621
2003-12-31 191.8353
2004-03-31 191.1965
2004-06-30 197.8747
2004-09-30 199.4321
2004-12-31 196.7514
2005-03-31 202.235
2005-06-30 198.6269
2005-09-30 200.4935
2005-12-31 202.6275
2006-03-31 204.619
2006-06-30 211.4049
2006-09-30 220.6157
2006-12-31 233.1961
2007-03-31 231.5511
2007-06-30 247.8105
2007-09-30 234.3417
2007-12-31 222.3835
2008-03-31 197.796
2008-06-30 210.9705
2008-09-30 189.2056
2008-12-31 130.1747
2009-03-31 141.5473
2009-06-30 158.9162
2009-09-30 143.2013
2009-12-31 150.3217
2010-03-31 141.7356
2010-06-30 132.3838
2010-09-30 131.633
2010-12-31 126.9934
2011-03-31 132.8406
2011-06-30 129.6843
2011-09-30 120.0985
2011-12-31 119.6372
2012-03-31 131.5076
2012-06-30 125.1429
2012-09-30 125.6392
2012-12-31 139.3358
2013-03-31 142.7318
2013-06-30 150.669
2013-09-30 158.8955
2013-12-31 173.4779
2014-03-31 171.6986
2014-06-30 173.1926
2014-09-30 177.8456
2014-12-31 186.2503
2015-03-31 178.0304
2015-06-30 192.46
2015-09-30 181.4308
2015-12-31 178.4059
2016-03-31 161.5943
2016-06-30 137.8353
2016-09-30 131.5469
2016-12-31 143.8713
2017-03-31 139.353
2017-06-30 145.9816
2017-09-30 151.0105
2017-12-31 151.974
2018-03-31 149.241
2018-06-30 146.2232
2018-09-30 148.1458
2018-12-31 140.3952
2019-03-31 144.2291
2019-06-30 137.1442
2019-09-30 133.1546
2019-12-31 143.421
2020-03-31 133.8656
2020-06-30 133.3907
2020-09-30 136.387
2020-12-31 140.6666
2021-03-31 152.4734
2021-06-30 153.3771
2021-09-30 150.4545
2021-12-31 155.1472
2022-03-31 159.7867
2022-06-30 164.9748
2022-09-30 161.7193
2022-12-31 158.6138
2023-03-31 164.5401
2023-06-30 183.73
2023-09-30 182.1651
2023-12-31 179.7391