Quarterly Millions of US Dollars
1972-01-01 40
1972-04-01 40
1972-07-01 31
1972-10-01 105
1973-01-01 65
1973-07-01 38
1973-10-01 66
1974-10-01 25
1975-01-01 75
1975-04-01 59
1976-01-01 50
1976-04-01 122
1976-07-01 40
1976-10-01 109
1977-01-01 115
1977-04-01 389
1977-07-01 143
1977-10-01 436
1978-01-01 712
1978-04-01 324
1978-07-01 150
1978-10-01 433
1979-01-01 352
1979-04-01 149
1979-07-01 129
1979-10-01 207
1980-01-01 -75
1980-04-01 211
1980-07-01 196
1980-10-01 99
1981-01-01 45
1981-04-01 150
1981-07-01 90
1981-10-01 189
1982-01-01 168
1982-04-01 -341
1982-07-01 175
1982-10-01 -25
1983-01-01 -383
1983-04-01 -67
1983-07-01 50
1983-10-01 -75
1984-01-01 -100
1984-04-01 -66
1984-07-01 -134
1984-10-01 -47
1985-01-01 -99
1985-04-01 -6
1985-07-01 -21
1985-10-01 -515
1986-01-01 -55
1986-04-01 -206
1986-07-01 -9
1986-10-01 -268
1987-01-01 -262
1987-04-01 -24
1987-07-01 -115
1987-10-01 -247
1988-01-01 91
1988-04-01 -315
1988-07-01 -254
1988-10-01 205
1989-01-01 11
1989-04-01 -23
1989-07-01 933
1989-10-01 -429
1990-01-01 34390
1990-04-01 -331
1990-07-01 -206
1990-10-01 15573
1991-01-01 386
1991-04-01 164
1991-07-01 241
1991-10-01 731
1992-01-01 -58
1992-04-01 50
1992-07-01 250
1992-10-01 170
1993-01-01 48
1993-04-01 17879
1993-07-01 509
1993-10-01 10397
1994-01-01 782
1994-04-01 42611
1994-07-01 1589
1994-10-01 1162
1995-01-01 5078
1995-04-01 3142
1995-07-01 4454
1995-10-01 3495
1996-01-01 6029
1996-04-01 3846
1996-07-01 8795
1996-10-01 5338
1997-01-01 12952
1997-04-01 7506
1997-07-01 3216
1997-10-01 1102
1998-01-01 4640
1998-04-01 6319
1998-07-01 2660
1998-10-01 -20750
1999-01-01 3061
1999-04-01 9481
1999-07-01 3471
1999-10-01 8121
2000-01-01 11407
2000-04-01 -550
2000-07-01 15940
2000-10-01 -763
2001-01-01 9637
2001-04-01 -4208
2001-07-01 114
2001-10-01 -4202
2002-01-01 4513
2002-04-01 -2623
2002-07-01 184
2002-10-01 753
2003-01-01 -5374
2003-04-01 -1784
2003-07-01 -1382
2003-10-01 2351
2004-01-01 4767
2004-04-01 -1789
2004-07-01 1720
2004-10-01 5127
2005-01-01 5009
2005-04-01 -27833
2005-07-01 565
2005-10-01 3252
2006-01-01 -73
2006-04-01 -16733
2006-07-01 2656
2006-10-01 2311
2007-01-01 -934
2007-04-01 1952
2007-07-01 -1434
2007-10-01 -510
2008-01-01 -6524
2008-04-01 2107
2008-07-01 -1626
2008-10-01 -5735
2009-01-01 1463
2009-04-01 -5098
2009-07-01 3583
2009-10-01 9059
2010-01-01 -4731
2010-04-01 4341
2010-07-01 5546
2010-10-01 4966
2011-01-01 -1131
2011-04-01 -1029
2011-07-01 6012
2011-10-01 6136
2012-01-01 2352
2012-04-01 3048
2012-07-01 1406
2012-10-01 3869
2013-01-01 107
2013-04-01 2921
2013-07-01 3957
2013-10-01 10200
2014-01-01 3913
2014-04-01 8757
2014-07-01 4902
2014-10-01 1998
2015-01-01 10850
2015-04-01 3104
2015-07-01 -866
2015-10-01 204
2016-01-01 11728
2016-04-01 20270
2016-07-01 8602
2016-10-01 8143
2017-01-01 18318
2017-04-01 16814
2017-07-01 5116
2017-10-01 5837
2018-01-01 19375
2018-04-01 433