Quarterly Millions of US Dollars
1968-07-01 40
1972-04-01 25
1972-10-01 50
1973-01-01 30
1973-04-01 37
1973-10-01 20
1974-01-01 66
1974-04-01 17
1974-10-01 19
1975-01-01 45
1975-10-01 18
1976-04-01 13
1976-07-01 398
1976-10-01 52
1977-01-01 88
1977-04-01 37
1977-07-01 87
1977-10-01 46
1978-01-01 180
1978-04-01 146
1978-07-01 130
1978-10-01 128
1979-01-01 273
1979-04-01 108
1979-07-01 216
1980-04-01 51
1980-07-01 142
1980-10-01 47
1981-04-01 63
1981-07-01 116
1981-10-01 150
1982-01-01 445
1982-04-01 290
1982-07-01 37
1982-10-01 487
1983-01-01 53
1983-04-01 238
1983-07-01 1333
1983-10-01 179
1984-01-01 421
1984-04-01 42
1984-07-01 378
1984-10-01 1086
1985-01-01 735
1985-04-01 1540
1985-07-01 658
1985-10-01 2046
1986-01-01 1284
1986-04-01 534
1986-07-01 191
1986-10-01 285
1987-01-01 631
1987-04-01 231
1987-07-01 551
1987-10-01 473
1988-01-01 -27
1988-04-01 -77
1988-07-01 854
1988-10-01 373
1989-01-01 -76
1989-04-01 -23
1989-07-01 -110
1989-10-01 757
1990-01-01 236
1990-04-01 310
1990-07-01 536
1990-10-01 180
1991-01-01 724
1991-04-01 1681
1991-07-01 496
1991-10-01 501
1992-01-01 267
1992-04-01 64
1992-07-01 1601
1992-10-01 3377
1993-01-01 387
1993-04-01 1311
1993-07-01 1978
1993-10-01 5523
1994-01-01 4657
1994-04-01 4137
1994-07-01 4618
1994-10-01 1888
1995-01-01 1024
1995-04-01 2045
1995-07-01 6259
1995-10-01 2656
1996-01-01 5612
1996-04-01 7299
1996-07-01 11764
1996-10-01 14782
1997-01-01 8249
1997-04-01 12155
1997-07-01 11006
1997-10-01 3395
1998-01-01 -374
1998-04-01 6200
1998-07-01 -3544
1998-10-01 -940
1999-01-01 9
1999-04-01 234
1999-07-01 -3104
1999-10-01 -718
2000-01-01 2995
2000-04-01 -1621
2000-07-01 -1541
2000-10-01 443
2001-01-01 -3242
2001-04-01 1347
2001-07-01 -3036
2001-10-01 1274
2002-01-01 2975
2002-04-01 6358
2002-07-01 4180
2002-10-01 3606
2003-01-01 1412
2003-04-01 5162
2003-07-01 6668
2003-10-01 7106
2004-01-01 8550
2004-04-01 6689
2004-07-01 6967
2004-10-01 10817
2005-01-01 9282
2005-04-01 7107
2005-07-01 4792
2005-10-01 10572
2006-01-01 12134
2006-04-01 9168
2006-07-01 11557
2006-10-01 11875
2007-01-01 15994
2007-04-01 20519
2007-07-01 1088
2007-10-01 6306
2008-01-01 4566
2008-04-01 6452
2008-07-01 4852
2008-10-01 -12002
2009-01-01 2293
2009-04-01 9539
2009-07-01 15012
2009-10-01 5202
2010-01-01 7767
2010-04-01 5890
2010-07-01 15671
2010-10-01 26659
2011-01-01 22060
2011-04-01 33399
2011-07-01 11295
2011-10-01 10264
2012-01-01 33787
2012-04-01 32810
2012-07-01 22782
2012-10-01 23403
2013-01-01 33192
2013-04-01 46644
2013-07-01 30740
2013-10-01 50222
2014-01-01 45013
2014-04-01 63882
2014-07-01 38146
2014-10-01 67698
2015-01-01 29968
2015-04-01 53526
2015-07-01 13138
2015-10-01 32082
2016-01-01 778
2016-04-01 46979
2016-07-01 42577
2016-10-01 39816
2017-01-01 70839
2017-04-01 60409
2017-07-01 73128
2017-10-01 91028
2018-01-01 59327
2018-04-01 37811