Quarterly Millions of US Dollars
1967-04-01 20
1971-01-01 31
1971-10-01 46
1972-01-01 31
1972-07-01 31
1972-10-01 66
1973-01-01 31
1973-04-01 17
1974-07-01 25
1975-01-01 21
1975-04-01 18
1975-07-01 25
1976-01-01 10
1976-04-01 67
1976-07-01 28
1976-10-01 142
1977-01-01 204
1977-04-01 190
1977-07-01 22
1977-10-01 86
1978-04-01 227
1978-07-01 22
1979-01-01 209
1979-04-01 136
1979-07-01 58
1979-10-01 38
1980-01-01 101
1980-04-01 118
1980-07-01 56
1980-10-01 69
1981-01-01 -13
1981-04-01 129
1981-10-01 64
1982-01-01 195
1982-04-01 259
1982-10-01 22
1983-01-01 229
1983-04-01 123
1983-07-01 146
1983-10-01 341
1984-01-01 493
1984-04-01 -224
1984-07-01 55
1984-10-01 668
1985-01-01 476
1985-04-01 366
1985-07-01 49
1985-10-01 -170
1986-01-01 -283
1986-04-01 -37
1986-07-01 -44
1986-10-01 -388
1987-01-01 -313
1987-04-01 -510
1987-07-01 284
1987-10-01 -62
1988-01-01 161
1988-04-01 -256
1988-07-01 33
1988-10-01 290
1989-01-01 -29
1989-04-01 -59
1989-07-01 -264
1989-10-01 -145
1990-01-01 -135
1990-04-01 389
1990-07-01 344
1990-10-01 917
1991-01-01 -141
1991-04-01 299
1991-07-01 -4
1991-10-01 925
1992-01-01 969
1992-04-01 1129
1992-07-01 1694
1992-10-01 57
1993-01-01 2340
1993-04-01 1171
1993-07-01 1203
1993-10-01 12
1994-01-01 -698
1994-04-01 -180
1994-07-01 1520
1994-10-01 -214
1995-01-01 4328
1995-04-01 -240
1995-07-01 -44
1995-10-01 -435
1996-01-01 -359
1996-04-01 33
1996-07-01 2362
1996-10-01 1005
1997-01-01 1702
1997-04-01 965
1997-07-01 1555
1997-10-01 555
1998-01-01 964
1998-04-01 1827
1998-07-01 1815
1998-10-01 903
1999-01-01 861
1999-04-01 3830
1999-07-01 1990
1999-10-01 4035
2000-01-01 -1473
2000-04-01 2256
2000-07-01 2630
2000-10-01 438
2001-01-01 723
2001-04-01 4635
2001-07-01 1407
2001-10-01 4117
2002-01-01 5860
2002-04-01 3711
2002-07-01 2928
2002-10-01 7999
2003-01-01 10336
2003-04-01 16304
2003-07-01 7677
2003-10-01 16301
2004-01-01 12641
2004-04-01 11461
2004-07-01 1273
2004-10-01 17879
2005-01-01 18139
2005-04-01 35673
2005-07-01 8225
2005-10-01 49825
2006-01-01 61947
2006-04-01 48529
2006-07-01 23739
2006-10-01 29153
2007-01-01 54017
2007-04-01 42117
2007-07-01 22806
2007-10-01 5113
2008-01-01 4797
2008-04-01 58088
2008-07-01 28968
2008-10-01 9209
2009-01-01 33476
2009-04-01 17741
2009-07-01 24416
2009-10-01 22557
2010-01-01 4640
2010-04-01 -16844
2010-07-01 30353
2010-10-01 -1879
2011-01-01 9918
2011-04-01 -8039
2011-07-01 1422
2011-10-01 -1274
2012-01-01 37723
2012-04-01 -39333
2012-07-01 -22843
2012-10-01 14024
2013-01-01 -7266
2013-04-01 -10785
2013-07-01 -24872
2013-10-01 1227
2014-01-01 -25584
2014-04-01 2900
2014-07-01 -15912
2014-10-01 -15849
2015-01-01 -5391
2015-04-01 -12952
2015-07-01 -7320
2015-10-01 -4152
2016-01-01 -26425
2016-04-01 -4460
2016-07-01 -4807
2016-10-01 -14478
2017-01-01 -17038
2017-04-01 7634
2017-07-01 -6068
2017-10-01 259
2018-01-01 3466
2018-04-01 -9223