Quarterly Millions of US Dollars
1972-01-01 20
1972-04-01 40
1974-07-01 9
1976-10-01 14
1977-04-01 2
1977-07-01 25
1978-01-01 91
1978-07-01 70
1978-10-01 42
1979-01-01 81
1979-07-01 115
1980-04-01 100
1980-07-01 25
1982-01-01 -14
1982-07-01 -25
1983-01-01 -9
1983-04-01 100
1984-01-01 -20
1984-10-01 100
1985-07-01 35
1985-10-01 -102
1986-01-01 -20
1986-10-01 18
1987-01-01 97
1987-04-01 117
1987-07-01 -26
1988-01-01 -92
1988-10-01 -1
1989-04-01 -58
1989-07-01 -71
1990-07-01 -87
1990-10-01 -120
1992-01-01 -103
1992-04-01 -76
1993-01-01 -41
1993-10-01 -89
1994-01-01 -112
1994-10-01 30
1995-07-01 0
1995-10-01 -115
1996-01-01 42
1996-04-01 45
1996-07-01 3285
1996-10-01 -87
1997-01-01 393
1997-04-01 8
1997-07-01 815
1997-10-01 124
1998-01-01 -1
1998-04-01 300
1998-07-01 -75
1998-10-01 -614
1999-01-01 500
1999-04-01 -5
1999-07-01 -1
1999-10-01 -5
2000-04-01 -30
2000-07-01 350
2000-10-01 -5
2001-01-01 1031
2001-04-01 -150
2001-07-01 -43
2001-10-01 -359
2002-01-01 -347
2002-04-01 -5
2002-07-01 96
2002-10-01 24
2003-01-01 168
2003-04-01 -7
2003-07-01 -32
2003-10-01 -5
2004-01-01 187
2004-04-01 -29
2004-07-01 -20
2004-10-01 595
2005-01-01 -8
2005-04-01 -5
2005-07-01 396
2005-10-01 1106
2006-01-01 1303
2006-04-01 -610
2006-07-01 54
2006-10-01 291
2007-04-01 445
2007-10-01 475
2008-04-01 -370
2008-10-01 -5
2009-01-01 323
2009-04-01 -5
2009-10-01 1000
2010-04-01 97
2010-07-01 30
2010-10-01 -138
2011-01-01 57
2011-04-01 244
2011-07-01 819
2011-10-01 277
2012-01-01 -140
2012-04-01 374
2012-07-01 -287
2012-10-01 1058
2013-01-01 317
2013-04-01 1260
2013-07-01 76
2013-10-01 278
2014-01-01 199
2014-04-01 1556
2014-07-01 1251
2014-10-01 -226
2015-01-01 -103
2015-04-01 454
2015-07-01 62
2015-10-01 429
2016-01-01 666
2016-04-01 572
2016-07-01 -20
2016-10-01 385
2017-01-01 211
2017-04-01 1135
2017-07-01 1090
2017-10-01 109
2018-01-01 -68
2018-04-01 1954