Quarterly Millions of US Dollars
1966-04-01 10
1971-01-01 15
1971-10-01 12
1972-01-01 13
1972-04-01 24
1973-01-01 12
1973-04-01 21
1974-04-01 3
1974-10-01 11
1975-04-01 78
1976-01-01 23
1976-04-01 32
1976-07-01 45
1976-10-01 35
1977-01-01 32
1977-07-01 56
1977-10-01 32
1978-01-01 84
1978-04-01 34
1978-07-01 15
1978-10-01 65
1979-01-01 17
1979-10-01 -9
1980-01-01 59
1980-07-01 52
1980-10-01 61
1981-01-01 -18
1981-04-01 29
1981-07-01 24
1981-10-01 33
1982-01-01 10
1982-04-01 -17
1982-07-01 -15
1982-10-01 60
1983-01-01 16
1983-04-01 39
1983-10-01 -12
1984-01-01 80
1984-04-01 2
1984-07-01 -11
1984-10-01 45
1985-01-01 24
1985-04-01 -69
1985-07-01 30
1985-10-01 47
1986-01-01 -10
1986-04-01 2
1986-07-01 56
1986-10-01 -21
1987-01-01 -24
1987-04-01 296
1987-07-01 -32
1987-10-01 86
1988-01-01 122
1988-04-01 122
1988-07-01 53
1988-10-01 144
1989-01-01 -10
1989-04-01 77
1989-07-01 80
1989-10-01 105
1990-01-01 219
1990-04-01 103
1990-07-01 152
1990-10-01 280
1991-01-01 89
1991-04-01 -148
1991-07-01 58
1991-10-01 -111
1992-01-01 -38
1992-04-01 81
1992-07-01 -98
1992-10-01 -175
1993-01-01 236
1993-04-01 -179
1993-07-01 -123
1993-10-01 -221
1994-01-01 356
1994-04-01 209
1994-07-01 119
1994-10-01 -140
1995-01-01 46
1995-04-01 7
1995-07-01 156
1995-10-01 230
1996-01-01 -32
1996-04-01 70
1996-07-01 558
1996-10-01 262
1997-01-01 -31
1997-04-01 -299
1997-07-01 -81
1997-10-01 -47
1998-01-01 -306
1998-04-01 119
1998-07-01 941
1998-10-01 -224
1999-01-01 39
1999-04-01 92
1999-07-01 6
1999-10-01 373
2000-01-01 271
2000-04-01 288
2000-07-01 17
2000-10-01 323
2001-01-01 577
2001-04-01 1201
2001-07-01 -64
2001-10-01 47
2002-01-01 57
2002-04-01 -257
2002-07-01 -88
2002-10-01 -17
2003-01-01 1493
2003-04-01 28
2003-07-01 866
2003-10-01 -148
2004-01-01 668
2004-04-01 916
2004-07-01 95
2004-10-01 1413
2005-01-01 502
2005-04-01 1899
2005-07-01 -40
2005-10-01 386
2006-01-01 -288
2006-04-01 -389
2006-07-01 -569
2006-10-01 -660
2007-01-01 -612
2007-04-01 9
2007-07-01 -156
2007-10-01 -112
2008-01-01 48
2008-04-01 167
2008-07-01 -540
2008-10-01 -278
2009-01-01 -456
2009-04-01 1128
2009-07-01 -22
2009-10-01 972
2010-01-01 789
2010-04-01 450
2010-07-01 -1537
2010-10-01 -331
2011-01-01 3017
2011-04-01 287
2011-07-01 -101
2011-10-01 -956
2012-01-01 969
2012-04-01 -1509
2012-07-01 2115
2012-10-01 1951
2013-01-01 -905
2013-04-01 2103
2013-07-01 455
2013-10-01 -872
2014-01-01 -633
2014-04-01 350
2014-07-01 1075
2014-10-01 1238
2015-01-01 930
2015-04-01 173
2015-07-01 984
2015-10-01 1353
2016-01-01 1764
2016-04-01 -359
2016-07-01 -230
2016-10-01 -753
2017-04-01 578
2017-07-01 1679
2017-10-01 -464
2018-01-01 -630
2018-04-01 -598