Quarterly Millions of US Dollars
1971-01-01 25
1972-10-01 30
1973-01-01 52
1973-04-01 20
1973-07-01 72
1974-01-01 23
1974-04-01 59
1974-07-01 16
1974-10-01 36
1975-04-01 34
1975-10-01 38
1976-07-01 20
1977-01-01 30
1977-07-01 57
1978-04-01 83
1979-04-01 39
1979-07-01 13
1979-10-01 67
1980-01-01 116
1980-07-01 12
1980-10-01 95
1981-01-01 100
1981-04-01 100
1981-07-01 -72
1981-10-01 342
1982-01-01 300
1982-04-01 103
1982-07-01 164
1982-10-01 50
1983-01-01 242
1983-04-01 90
1983-07-01 34
1983-10-01 650
1984-01-01 37
1984-04-01 59
1984-07-01 349
1984-10-01 258
1985-01-01 398
1985-04-01 200
1985-07-01 242
1985-10-01 396
1986-01-01 197
1986-04-01 529
1986-07-01 1008
1986-10-01 -3
1987-01-01 -202
1987-04-01 189
1987-07-01 -99
1987-10-01 -345
1988-01-01 233
1988-04-01 200
1988-07-01 -355
1988-10-01 -90
1989-01-01 -68
1989-04-01 250
1989-07-01 1772
1989-10-01 -54
1990-01-01 278
1990-04-01 249
1990-07-01 -238
1990-10-01 37
1991-01-01 28
1991-04-01 558
1991-07-01 5
1991-10-01 -56
1992-01-01 174
1992-04-01 -261
1992-07-01 372
1992-10-01 973
1993-01-01 1596
1993-04-01 -139
1993-07-01 100
1993-10-01 -109
1994-01-01 -636
1994-04-01 327
1994-07-01 -299
1994-10-01 -553
1995-01-01 533
1995-04-01 330
1995-07-01 282
1995-10-01 964
1996-01-01 3174
1996-04-01 -70
1996-07-01 476
1996-10-01 849
1997-01-01 677
1997-04-01 193
1997-07-01 562
1997-10-01 -431
1998-01-01 1177
1998-04-01 433
1998-07-01 1193
1998-10-01 -505
1999-01-01 1869
1999-04-01 542
1999-07-01 743
1999-10-01 2163
2000-01-01 2510
2000-04-01 3374
2000-07-01 -1548
2000-10-01 -175
2001-01-01 6033
2001-04-01 229
2001-07-01 2286
2001-10-01 3217
2002-01-01 1703
2002-04-01 -800
2002-07-01 1923
2002-10-01 4950
2003-01-01 2583
2003-04-01 5279
2003-07-01 4811
2003-10-01 3444
2004-01-01 8427
2004-04-01 2565
2004-07-01 11016
2004-10-01 8688
2005-01-01 10002
2005-04-01 13649
2005-07-01 10825
2005-10-01 14763
2006-01-01 8690
2006-04-01 15890
2006-07-01 25135
2006-10-01 18298
2007-01-01 42461
2007-04-01 30499
2007-07-01 44479
2007-10-01 -2120
2008-01-01 18932
2008-04-01 34125
2008-07-01 3055
2008-10-01 44684
2009-01-01 13107
2009-04-01 15852
2009-07-01 14238
2009-10-01 6451
2010-01-01 16386
2010-04-01 3006
2010-07-01 -45512
2010-10-01 10223
2011-01-01 -31011
2011-04-01 -10914
2011-07-01 -16186
2011-10-01 -2447
2012-01-01 26865
2012-04-01 6669
2012-07-01 -24869
2012-10-01 5386
2013-01-01 2523
2013-04-01 -15965
2013-07-01 -1405
2013-10-01 10731
2014-01-01 -33553
2014-04-01 -4973
2014-07-01 -3845
2014-10-01 -27749
2015-01-01 -25537
2015-04-01 13805
2015-07-01 -5240
2015-10-01 9649
2016-01-01 4398
2016-04-01 2001
2016-07-01 3438
2016-10-01 -364
2017-01-01 -2920
2017-04-01 1204
2017-07-01 -965
2017-10-01 -2198
2018-01-01 309
2018-04-01 739