Quarterly Millions of US Dollars
1972-10-01 30
1973-01-01 23
1973-04-01 20
1973-07-01 21
1974-01-01 23
1980-01-01 30
1980-07-01 -49
1982-10-01 20
1983-01-01 -34
1983-04-01 12
1985-10-01 23
1986-01-01 -13
1988-01-01 81
1988-04-01 -31
1989-01-01 -26
1990-10-01 37
1991-07-01 16
1992-10-01 -107
1993-04-01 -9
1993-10-01 -33
1995-01-01 -89
1995-04-01 96
1995-07-01 -63
1995-10-01 -31
1996-07-01 -19
1996-10-01 181
1997-01-01 303
1997-10-01 325
1998-01-01 55
1998-04-01 65
1998-07-01 31
1998-10-01 540
1999-01-01 -96
1999-04-01 217
1999-07-01 738
1999-10-01 -8
2000-01-01 994
2000-04-01 -730
2000-07-01 38
2000-10-01 -76
2001-01-01 1530
2001-04-01 485
2001-07-01 372
2001-10-01 -292
2002-01-01 170
2002-04-01 -44
2002-07-01 -227
2002-10-01 -1169
2003-01-01 654
2003-04-01 898
2003-07-01 331
2003-10-01 -249
2004-01-01 946
2004-04-01 -372
2004-07-01 787
2004-10-01 -53
2005-01-01 831
2005-04-01 977
2005-07-01 -646
2005-10-01 318
2006-01-01 385
2006-04-01 -1507
2006-07-01 592
2006-10-01 829
2007-01-01 2183
2007-04-01 -1267
2007-07-01 -3159
2007-10-01 -322
2008-01-01 3390
2008-04-01 539
2008-07-01 846
2008-10-01 3935
2009-01-01 -887
2009-04-01 1023
2009-07-01 -203
2009-10-01 -363
2010-01-01 -1035
2010-04-01 -887
2010-07-01 -2321
2010-10-01 3027
2011-01-01 -19
2011-04-01 3278
2011-07-01 -2257
2011-10-01 -961
2012-01-01 1208
2012-04-01 -2992
2012-07-01 986
2012-10-01 1356
2013-01-01 1095
2013-04-01 -359
2013-07-01 -146
2013-10-01 -29
2014-01-01 1767
2014-04-01 169
2014-07-01 -812
2014-10-01 166
2015-01-01 1389
2015-04-01 619
2015-07-01 -362
2015-10-01 -357
2016-01-01 859
2016-04-01 -1351
2016-07-01 -11
2016-10-01 455
2017-01-01 -249
2017-04-01 -192
2017-07-01 634
2017-10-01 -907
2018-01-01 218
2018-04-01 736