Quarterly Millions of US Dollars
1967-04-01 25
1968-04-01 30
1968-10-01 20
1969-10-01 50
1970-01-01 27
1971-01-01 56
1971-04-01 70
1972-10-01 50
1975-01-01 10
1975-04-01 10
1977-01-01 28
1977-04-01 87
1977-10-01 75
1978-01-01 26
1978-04-01 110
1979-01-01 36
1979-04-01 50
1979-07-01 100
1979-10-01 36
1980-01-01 200
1980-04-01 342
1980-07-01 279
1980-10-01 144
1981-01-01 250
1981-04-01 -2
1981-10-01 508
1982-01-01 822
1982-04-01 108
1982-07-01 100
1982-10-01 550
1983-01-01 127
1983-04-01 98
1983-07-01 164
1983-10-01 850
1984-01-01 334
1984-04-01 124
1984-07-01 602
1984-10-01 1249
1985-01-01 1050
1985-04-01 1607
1985-07-01 830
1985-10-01 665
1986-01-01 -260
1986-04-01 1288
1986-07-01 814
1986-10-01 -32
1987-01-01 32
1987-04-01 356
1987-07-01 140
1987-10-01 3234
1988-01-01 358
1988-04-01 717
1988-07-01 908
1988-10-01 -379
1989-01-01 -312
1989-04-01 422
1989-07-01 529
1989-10-01 -31
1990-01-01 16
1990-04-01 2714
1990-07-01 1791
1990-10-01 831
1991-01-01 5991
1991-04-01 -633
1991-07-01 224
1991-10-01 47
1992-01-01 1409
1992-04-01 1124
1992-07-01 -469
1992-10-01 -450
1993-01-01 2235
1993-04-01 1244
1993-07-01 7982
1993-10-01 861
1994-01-01 2009
1994-04-01 -68
1994-07-01 3736
1994-10-01 2624
1995-01-01 -1130
1995-04-01 6124
1995-07-01 1276
1995-10-01 1071
1996-01-01 -1160
1996-04-01 2793
1996-07-01 478
1996-10-01 1012
1997-01-01 943
1997-04-01 2453
1997-07-01 2382
1997-10-01 -783
1998-01-01 587
1998-04-01 3984
1998-07-01 48
1998-10-01 4267
1999-01-01 -1371
1999-04-01 9511
1999-07-01 -72
1999-10-01 12006
2000-01-01 10416
2000-04-01 14840
2000-07-01 9668
2000-10-01 8880
2001-01-01 11724
2001-04-01 9681
2001-07-01 5066
2001-10-01 19753
2002-01-01 9648
2002-04-01 5234
2002-07-01 8547
2002-10-01 14531
2003-01-01 22583
2003-04-01 10805
2003-07-01 8550
2003-10-01 15797
2004-01-01 30651
2004-04-01 30251
2004-07-01 9644
2004-10-01 25256
2005-01-01 25319
2005-04-01 29510
2005-07-01 -10705
2005-10-01 26892
2006-01-01 26185
2006-04-01 21867
2006-07-01 24046
2006-10-01 25693
2007-01-01 28207
2007-04-01 51831
2007-07-01 -6528
2007-10-01 7968
2008-01-01 24313
2008-04-01 32894
2008-07-01 -1647
2008-10-01 70902
2009-01-01 35776
2009-04-01 14837
2009-07-01 19321
2009-10-01 32288
2010-01-01 60
2010-04-01 -1672
2010-07-01 32420
2010-10-01 12786
2011-01-01 18555
2011-04-01 6885
2011-07-01 6136
2011-10-01 3517
2012-01-01 -30321
2012-04-01 -23914
2012-07-01 844
2012-10-01 -6408
2013-01-01 -18929
2013-04-01 3
2013-07-01 18010
2013-10-01 16678
2014-01-01 -7799
2014-04-01 4455
2014-07-01 -21642
2014-10-01 2521
2015-01-01 3333
2015-04-01 -2106
2015-07-01 -9411
2015-10-01 -4089
2016-01-01 -18142
2016-04-01 12096
2016-07-01 -9801
2016-10-01 1253
2017-01-01 8652
2017-04-01 11190
2017-07-01 3021
2017-10-01 5935
2018-01-01 4541
2018-04-01 5048