Quarterly Millions of US Dollars
1971-01-01 46
1971-04-01 31
1971-07-01 31
1972-04-01 32
1973-04-01 14
1973-10-01 10
1974-01-01 32
1974-04-01 82
1974-10-01 153
1975-01-01 417
1975-04-01 443
1975-07-01 212
1975-10-01 441
1976-01-01 770
1976-04-01 729
1976-07-01 205
1976-10-01 372
1977-01-01 558
1977-04-01 566
1977-07-01 270
1977-10-01 427
1978-01-01 473
1978-04-01 660
1978-07-01 815
1978-10-01 795
1979-01-01 1259
1979-04-01 1060
1979-07-01 1001
1979-10-01 169
1980-01-01 296
1980-04-01 447
1980-07-01 741
1980-10-01 1023
1981-01-01 345
1981-04-01 644
1981-07-01 1575
1981-10-01 771
1982-01-01 1140
1982-04-01 728
1982-07-01 846
1982-10-01 1458
1983-01-01 2129
1983-04-01 2067
1983-07-01 1320
1983-10-01 1882
1984-01-01 3267
1984-04-01 2113
1984-07-01 2867
1984-10-01 1759
1985-01-01 4242
1985-04-01 2687
1985-07-01 4010
1985-10-01 3364
1986-01-01 3816
1986-04-01 6233
1986-07-01 6358
1986-10-01 6608
1987-01-01 5493
1987-04-01 9625
1987-07-01 13609
1987-10-01 3557
1988-01-01 5426
1988-04-01 7507
1988-07-01 15716
1988-10-01 6113
1989-01-01 17689
1989-04-01 28270
1989-07-01 14571
1989-10-01 18200
1990-01-01 7686
1990-04-01 394
1990-07-01 10934
1990-10-01 10224
1991-01-01 6905
1991-04-01 10349
1991-07-01 12227
1991-10-01 9662
1992-01-01 1914
1992-04-01 -351
1992-07-01 -9547
1992-10-01 3739
1993-01-01 -13597
1993-04-01 -17126
1993-07-01 -10695
1993-10-01 -3344
1994-01-01 -1774
1994-04-01 -7242
1994-07-01 -9632
1994-10-01 -9052
1995-01-01 -6234
1995-04-01 -6963
1995-07-01 -14574
1995-10-01 -3385
1996-01-01 -3166
1996-04-01 -2716
1996-07-01 -4003
1996-10-01 -7012
1997-01-01 -6440
1997-04-01 -6230
1997-07-01 -7870
1997-10-01 -10497
1998-01-01 -10676
1998-04-01 -9327
1998-07-01 -5664
1998-10-01 -3125
1999-01-01 -1831
1999-04-01 -380
1999-07-01 -1016
1999-10-01 -6788
2000-01-01 -7948
2000-04-01 -770
2000-07-01 -1489
2000-10-01 -3215
2001-01-01 -2867
2001-04-01 208
2001-07-01 -2777
2001-10-01 1080
2002-01-01 1490
2002-04-01 4042
2002-07-01 -1739
2002-10-01 -2245
2003-01-01 -921
2003-04-01 1443
2003-07-01 -2565
2003-10-01 7745
2004-01-01 3891
2004-04-01 8517
2004-07-01 1069
2004-10-01 2159
2005-01-01 3869
2005-04-01 2695
2005-07-01 5943
2005-10-01 518
2006-01-01 3334
2006-04-01 1800
2006-07-01 1592
2006-10-01 1359
2007-01-01 -1490
2007-04-01 2819
2007-07-01 937
2007-10-01 4662
2008-01-01 -716
2008-04-01 3855
2008-07-01 -908
2008-10-01 -5859
2009-01-01 -5555
2009-04-01 -5599
2009-07-01 -1195
2009-10-01 -681
2010-01-01 3917
2010-04-01 -6954
2010-07-01 6014
2010-10-01 -1624
2011-01-01 1853
2011-04-01 -8446
2011-07-01 -1113
2011-10-01 -3154
2012-01-01 6778
2012-04-01 -4554
2012-07-01 9548
2012-10-01 2515
2013-01-01 8877
2013-04-01 5082
2013-07-01 18471
2013-10-01 4002
2014-01-01 7158
2014-04-01 13614
2014-07-01 14346
2014-10-01 7882
2015-01-01 7598
2015-04-01 -195
2015-07-01 6260
2015-10-01 7549
2016-01-01 8581
2016-04-01 16371
2016-07-01 12494
2016-10-01 8795
2017-01-01 12273
2017-04-01 17753
2017-07-01 41971
2017-10-01 17779
2018-01-01 3292
2018-04-01 5754