Quarterly Millions of US Dollars
1971-01-01 61
1971-04-01 51
1971-10-01 20
1972-01-01 139
1972-04-01 11
1972-07-01 71
1972-10-01 114
1973-01-01 65
1973-04-01 114
1973-07-01 38
1973-10-01 114
1974-01-01 15
1974-07-01 37
1974-10-01 50
1975-01-01 131
1975-04-01 234
1975-07-01 118
1975-10-01 98
1976-01-01 39
1976-04-01 83
1976-07-01 375
1976-10-01 182
1977-01-01 95
1977-04-01 133
1977-07-01 562
1977-10-01 477
1978-01-01 401
1978-04-01 371
1978-07-01 265
1978-10-01 247
1979-01-01 247
1979-04-01 -18
1979-07-01 256
1979-10-01 55
1980-01-01 -19
1980-04-01 66
1980-07-01 56
1980-10-01 24
1981-01-01 33
1981-04-01 402
1981-07-01 452
1981-10-01 547
1982-01-01 230
1982-04-01 183
1982-07-01 -194
1982-10-01 193
1983-01-01 146
1983-04-01 78
1983-07-01 31
1983-10-01 -129
1984-01-01 10
1984-04-01 86
1984-07-01 -35
1984-10-01 1
1985-01-01 552
1985-04-01 458
1985-07-01 39
1985-10-01 -575
1986-01-01 34
1986-04-01 -19
1986-07-01 60
1986-10-01 -279
1987-01-01 -219
1987-04-01 -74
1987-07-01 -38
1987-10-01 -384
1988-01-01 -176
1988-04-01 -367
1988-07-01 -394
1988-10-01 -285
1989-01-01 -83
1989-04-01 -128
1989-07-01 -272
1989-10-01 265
1990-01-01 1276
1990-04-01 91
1990-07-01 295
1990-10-01 652
1991-01-01 151
1991-04-01 1414
1991-07-01 572
1991-10-01 1966
1992-01-01 845
1992-04-01 1292
1992-07-01 1531
1992-10-01 1885
1993-01-01 570
1993-04-01 2951
1993-07-01 3195
1993-10-01 7663
1994-01-01 4670
1994-04-01 2722
1994-07-01 2372
1994-10-01 1382
1995-01-01 -2709
1995-04-01 957
1995-07-01 3411
1995-10-01 2353
1996-01-01 3217
1996-04-01 6243
1996-07-01 3332
1996-10-01 10529
1997-01-01 4794
1997-04-01 8408
1997-07-01 9877
1997-10-01 1956
1998-01-01 3364
1998-04-01 4570
1998-07-01 -481
1998-10-01 -923
1999-01-01 -397
1999-04-01 2898
1999-07-01 274
1999-10-01 -306
2000-01-01 3257
2000-04-01 786
2000-07-01 1071
2000-10-01 -3356
2001-01-01 849
2001-04-01 1473
2001-07-01 700
2001-10-01 994
2002-01-01 251
2002-04-01 1271
2002-07-01 -2411
2002-10-01 1802
2003-01-01 1624
2003-04-01 242
2003-07-01 1725
2003-10-01 1754
2004-01-01 3971
2004-04-01 570
2004-07-01 -344
2004-10-01 491
2005-01-01 1505
2005-04-01 740
2005-07-01 5386
2005-10-01 3799
2006-01-01 5403
2006-04-01 3136
2006-07-01 5893
2006-10-01 8254
2007-01-01 2442
2007-04-01 20754
2007-07-01 1964
2007-10-01 7136
2008-01-01 66
2008-04-01 2910
2008-07-01 3351
2008-10-01 -5164
2009-01-01 -1344
2009-04-01 6086
2009-07-01 17775
2009-10-01 18511
2010-01-01 9900
2010-04-01 13440
2010-07-01 6646
2010-10-01 16303
2011-01-01 16493
2011-04-01 15302
2011-07-01 5901
2011-10-01 18588
2012-01-01 13193
2012-04-01 10137
2012-07-01 19186
2012-10-01 17875
2013-01-01 17115
2013-04-01 25191
2013-07-01 14603
2013-10-01 24559
2014-01-01 8269
2014-04-01 22464
2014-07-01 10904
2014-10-01 17600
2015-01-01 7552
2015-04-01 21677
2015-07-01 1672
2015-10-01 -1493
2016-01-01 19092
2016-04-01 3447
2016-07-01 7579
2016-10-01 11514
2017-01-01 8443
2017-04-01 7217
2017-07-01 20783
2017-10-01 10379
2018-01-01 6478
2018-04-01 9430