Quarterly Millions of US Dollars
1968-07-01 40
1973-10-01 2
1974-01-01 50
1975-01-01 20
1980-04-01 30
1981-04-01 20
1981-10-01 136
1982-04-01 30
1984-04-01 1
1984-07-01 21
1984-10-01 40
1985-01-01 150
1985-04-01 79
1985-07-01 21
1985-10-01 186
1986-01-01 294
1986-04-01 0
1986-10-01 45
1987-01-01 415
1987-07-01 58
1987-10-01 113
1988-01-01 74
1988-04-01 203
1988-07-01 337
1988-10-01 11
1989-04-01 250
1989-10-01 338
1990-01-01 101
1990-07-01 149
1990-10-01 230
1991-01-01 152
1991-04-01 -36
1991-07-01 293
1991-10-01 -6
1992-01-01 -335
1992-04-01 -51
1992-10-01 -194
1993-01-01 -401
1993-04-01 -136
1993-07-01 57
1993-10-01 270
1994-01-01 70
1994-04-01 231
1994-07-01 289
1994-10-01 -427
1995-01-01 -22
1995-04-01 -133
1995-07-01 192
1995-10-01 24
1996-01-01 315
1996-04-01 68
1996-07-01 350
1996-10-01 252
1997-01-01 294
1997-04-01 420
1997-07-01 913
1997-10-01 88
1998-01-01 348
1998-04-01 225
1998-07-01 -208
1998-10-01 -10
1999-01-01 50
1999-04-01 -401
1999-07-01 -199
1999-10-01 -405
2000-01-01 281
2000-04-01 -110
2000-07-01 -564
2001-01-01 -190
2001-04-01 -233
2001-07-01 -156
2002-01-01 120
2002-04-01 100
2002-07-01 -392
2002-10-01 -511
2003-01-01 -220
2003-07-01 100
2003-10-01 99
2004-01-01 798
2004-04-01 500
2004-07-01 1302
2004-10-01 1879
2005-01-01 2418
2005-04-01 525
2005-07-01 1198
2005-10-01 1582
2006-01-01 3472
2006-04-01 2199
2006-07-01 1195
2006-10-01 2362
2007-01-01 6315
2007-04-01 3640
2007-07-01 469
2007-10-01 3302
2008-01-01 347
2008-04-01 251
2008-07-01 1201
2008-10-01 618
2009-01-01 -1695
2009-04-01 513
2009-07-01 287
2009-10-01 3038
2010-01-01 -971
2010-04-01 -449
2010-07-01 -293
2010-10-01 2583
2011-01-01 1722
2011-04-01 4060
2011-07-01 1461
2011-10-01 -2385
2012-01-01 3516
2012-04-01 -1580
2012-07-01 1025
2012-10-01 1781
2013-01-01 3128
2013-04-01 7879
2013-07-01 1690
2013-10-01 3640
2014-01-01 2580
2014-04-01 4818
2014-07-01 6823
2014-10-01 1137
2015-01-01 728
2015-04-01 3516
2015-07-01 -776
2015-10-01 -1411
2016-01-01 -1200
2016-04-01 -1402
2016-07-01 2320
2016-10-01 -2193
2017-01-01 6437
2017-04-01 1215
2017-07-01 2049
2017-10-01 5465
2018-01-01 -604
2018-04-01 -3546