Quarterly Millions of US Dollars
1975-01-01 64
1975-04-01 135
1976-01-01 49
1976-04-01 20
1976-07-01 22
1976-10-01 29
1977-01-01 183
1977-04-01 248
1977-07-01 176
1977-10-01 293
1978-04-01 352
1979-01-01 180
1979-04-01 776
1979-07-01 55
1979-10-01 419
1980-01-01 466
1980-04-01 932
1980-07-01 635
1980-10-01 655
1981-01-01 285
1981-04-01 200
1981-07-01 58
1981-10-01 253
1982-01-01 733
1982-04-01 -53
1982-07-01 46
1982-10-01 460
1983-01-01 1359
1983-04-01 -415
1983-07-01 75
1983-10-01 1175
1984-01-01 452
1984-04-01 1896
1984-07-01 746
1984-10-01 1364
1985-01-01 -1349
1985-04-01 2452
1985-07-01 -243
1985-10-01 -815
1986-01-01 -24
1986-04-01 -9
1986-07-01 115
1986-10-01 -487
1987-01-01 347
1987-04-01 -591
1987-07-01 -211
1987-10-01 -60
1988-01-01 694
1988-04-01 -1743
1988-07-01 22
1988-10-01 -367
1989-01-01 48
1989-04-01 -370
1989-07-01 -97
1989-10-01 -451
1990-01-01 -73
1990-04-01 -1445
1990-07-01 -303
1990-10-01 -10
1991-01-01 -211
1991-04-01 -197
1991-07-01 -70
1991-10-01 -1009
1992-01-01 -177
1992-04-01 370
1992-07-01 -564
1992-10-01 1269
1993-01-01 3269
1993-04-01 4
1993-07-01 5359
1993-10-01 1804
1994-01-01 3014
1994-04-01 6589
1994-07-01 3995
1994-10-01 1827
1995-01-01 329
1995-04-01 2977
1995-07-01 3036
1995-10-01 -1366
1996-01-01 1288
1996-04-01 5271
1996-07-01 -2846
1996-10-01 -536
1997-01-01 -1398
1997-04-01 1187
1997-07-01 -71
1997-10-01 -3927
1998-01-01 -3157
1998-04-01 1827
1998-07-01 -1808
1998-10-01 -3508
1999-01-01 -5767
1999-04-01 -2735
1999-07-01 -1656
1999-10-01 -1765
2000-01-01 -2179
2000-04-01 -1214
2000-07-01 -2025
2000-10-01 -910
2001-01-01 -1237
2001-04-01 -282
2001-07-01 -1388
2001-10-01 -243
2002-01-01 -103
2002-04-01 810
2002-07-01 -1114
2002-10-01 400
2003-01-01 -1819
2003-04-01 -866
2003-07-01 -164
2003-10-01 -403
2004-01-01 -888
2004-04-01 -263
2004-07-01 -70
2004-10-01 257
2005-01-01 1835
2005-04-01 -542
2005-07-01 -27
2005-10-01 -643
2006-01-01 814
2006-04-01 616
2006-07-01 -139
2006-10-01 317
2007-01-01 -938
2007-04-01 1578
2007-07-01 -1388
2007-10-01 1980
2008-01-01 -3660
2008-04-01 -254
2008-07-01 -808
2008-10-01 -1035
2009-01-01 4759
2009-04-01 8869
2009-07-01 4490
2009-10-01 130
2010-01-01 2684
2010-04-01 -5503
2010-07-01 -96
2010-10-01 7716
2011-01-01 -4723
2011-04-01 -437
2011-07-01 -2085
2011-10-01 4151
2012-01-01 -3401
2012-04-01 2232
2012-07-01 -98
2012-10-01 11353
2013-01-01 10729
2013-04-01 -1897
2013-07-01 3754
2013-10-01 1019
2014-01-01 549
2014-04-01 4524
2014-07-01 2961
2014-10-01 10420
2015-01-01 -4840
2015-04-01 -7873
2015-07-01 2682
2015-10-01 4777
2016-01-01 -7715
2016-04-01 -4371
2016-07-01 1700
2016-10-01 2885
2017-01-01 -830
2017-04-01 -2553
2017-07-01 1020
2017-10-01 -2151
2018-01-01 2836
2018-04-01 -2462