Quarterly Millions of US Dollars
1972-04-01 11
1975-10-01 18
1976-07-01 367
1976-10-01 11
1977-01-01 25
1979-01-01 30
1981-07-01 43
1981-10-01 119
1982-01-01 42
1982-10-01 100
1983-07-01 110
1983-10-01 64
1984-01-01 -4
1984-04-01 51
1984-07-01 66
1985-01-01 490
1985-04-01 180
1985-07-01 21
1985-10-01 186
1986-01-01 147
1986-04-01 159
1986-07-01 20
1986-10-01 100
1987-01-01 86
1987-04-01 51
1987-07-01 192
1987-10-01 32
1988-01-01 -12
1988-04-01 109
1988-07-01 174
1988-10-01 78
1989-01-01 -32
1989-04-01 105
1989-07-01 -106
1989-10-01 250
1990-01-01 375
1990-07-01 219
1990-10-01 348
1991-01-01 50
1991-04-01 543
1991-07-01 107
1991-10-01 585
1992-01-01 -48
1992-04-01 130
1992-07-01 726
1992-10-01 703
1993-01-01 57
1993-04-01 564
1993-07-01 1170
1993-10-01 4064
1994-01-01 1174
1994-04-01 2626
1994-07-01 2072
1994-10-01 1139
1995-01-01 -496
1995-04-01 999
1995-07-01 2894
1995-10-01 595
1996-01-01 1944
1996-04-01 2940
1996-07-01 2095
1996-10-01 4868
1997-01-01 2880
1997-04-01 4100
1997-07-01 3366
1997-10-01 1520
1998-01-01 216
1998-04-01 897
1998-07-01 -915
1998-10-01 -589
1999-01-01 17
1999-04-01 7
1999-07-01 -705
1999-10-01 -846
2000-01-01 1341
2000-04-01 -671
2000-07-01 129
2000-10-01 -592
2001-01-01 -93
2001-04-01 1576
2001-07-01 142
2001-10-01 662
2002-01-01 1731
2002-04-01 2229
2002-07-01 -72
2002-10-01 -110
2003-01-01 979
2003-04-01 1246
2003-07-01 1631
2003-10-01 -524
2004-01-01 2122
2004-04-01 2956
2004-07-01 941
2004-10-01 1037
2005-01-01 64
2005-04-01 1660
2005-07-01 2317
2005-10-01 1398
2006-01-01 946
2006-04-01 1380
2006-07-01 1477
2006-10-01 1296
2007-01-01 331
2007-04-01 4755
2007-07-01 -328
2007-10-01 1914
2008-01-01 -542
2008-04-01 -822
2008-07-01 -1009
2008-10-01 -2136
2009-01-01 -905
2009-04-01 1535
2009-07-01 2171
2009-10-01 5541
2010-01-01 -117
2010-04-01 270
2010-07-01 701
2010-10-01 6768
2011-01-01 -59
2011-04-01 5964
2011-07-01 2423
2011-10-01 393
2012-01-01 1755
2012-04-01 2338
2012-07-01 2410
2012-10-01 3462
2013-01-01 6797
2013-04-01 6675
2013-07-01 4296
2013-10-01 6981
2014-01-01 3331
2014-04-01 4716
2014-07-01 3861
2014-10-01 4649
2015-01-01 430
2015-04-01 5884
2015-07-01 -839
2015-10-01 -3908
2016-01-01 1082
2016-04-01 2451
2016-07-01 4260
2016-10-01 1358
2017-01-01 6576
2017-04-01 7002
2017-07-01 3819
2017-10-01 4704
2018-01-01 4377
2018-04-01 6446