Quarterly Millions of US Dollars
1971-10-01 15
1972-04-01 32
1972-07-01 18
1974-10-01 24
1975-01-01 7
1975-07-01 40
1975-10-01 6
1976-07-01 32
1976-10-01 116
1977-04-01 47
1977-07-01 33
1977-10-01 121
1978-01-01 199
1978-04-01 176
1978-07-01 100
1978-10-01 181
1979-01-01 281
1979-04-01 100
1979-07-01 19
1979-10-01 165
1980-01-01 80
1980-04-01 68
1980-07-01 38
1981-04-01 236
1981-10-01 112
1982-01-01 55
1982-04-01 135
1982-07-01 178
1982-10-01 47
1983-01-01 129
1983-04-01 194
1983-07-01 121
1983-10-01 18
1984-01-01 32
1984-04-01 52
1984-07-01 122
1984-10-01 42
1985-01-01 63
1985-04-01 171
1985-07-01 54
1985-10-01 -241
1986-01-01 36
1986-04-01 98
1986-07-01 94
1986-10-01 -79
1987-01-01 459
1987-04-01 -28
1987-07-01 -240
1987-10-01 493
1988-01-01 -100
1988-04-01 508
1988-07-01 -333
1988-10-01 -54
1989-01-01 29
1989-04-01 -130
1989-07-01 -5
1989-10-01 -11
1990-04-01 -155
1990-07-01 179
1990-10-01 669
1991-01-01 1146
1991-04-01 -216
1991-07-01 676
1991-10-01 1740
1992-01-01 2029
1992-04-01 3780
1992-07-01 2277
1992-10-01 3487
1993-01-01 3852
1993-04-01 2031
1993-07-01 -220
1993-10-01 175
1994-01-01 1455
1994-04-01 2689
1994-07-01 3471
1994-10-01 225
1995-01-01 1385
1995-04-01 -113
1995-07-01 -228
1995-10-01 -805
1996-01-01 1414
1996-04-01 -551
1996-07-01 -273
1996-10-01 222
1997-01-01 -102
1997-04-01 -650
1997-07-01 -1000
1997-10-01 -3583
1998-01-01 -1350
1998-04-01 1080
1998-07-01 -170
1998-10-01 -1689
1999-01-01 -326
1999-07-01 -60
1999-10-01 -386
2000-01-01 -1753
2000-04-01 -141
2000-07-01 -883
2000-10-01 -1486
2001-01-01 -1265
2001-04-01 4116
2001-07-01 -407
2001-10-01 -457
2002-01-01 877
2002-04-01 -1354
2002-07-01 -619
2002-10-01 -142
2003-01-01 6650
2003-04-01 3541
2003-07-01 -690
2003-10-01 -1506
2004-01-01 1331
2004-04-01 -1102
2004-07-01 -2032
2004-10-01 -89
2005-01-01 -19
2005-04-01 -1122
2006-01-01 -1000
2006-04-01 -48
2006-07-01 -8183
2006-10-01 376
2007-01-01 -2112
2007-04-01 -702
2007-07-01 -6720
2007-10-01 -442
2008-04-01 -197
2008-07-01 -7512
2008-10-01 -303
2009-01-01 2325
2009-04-01 -4405
2009-07-01 100
2010-01-01 1643
2010-04-01 1000
2010-10-01 2000
2011-01-01 10723
2011-04-01 -2191
2011-07-01 800
2012-01-01 1127
2012-04-01 3032
2012-07-01 -2033
2013-01-01 411
2013-04-01 -1000
2013-07-01 387
2013-10-01 3000
2014-01-01 -342
2014-04-01 2651
2014-07-01 1417
2014-10-01 549
2015-01-01 -123
2015-04-01 2901
2015-07-01 -163
2015-10-01 -3497
2016-01-01 -5131
2016-04-01 4291
2016-07-01 -152
2016-10-01 -130
2017-01-01 -1192
2017-04-01 792
2017-07-01 2246
2017-10-01 -331
2018-01-01 -576
2018-04-01 -2981