Quarterly Millions of US Dollars
1972-01-01 42
1972-07-01 20
1972-10-01 35
1973-07-01 38
1973-10-01 43
1974-07-01 2
1974-10-01 50
1975-01-01 92
1975-04-01 24
1975-07-01 25
1975-10-01 25
1976-10-01 98
1977-01-01 42
1977-04-01 117
1977-07-01 523
1977-10-01 356
1978-01-01 304
1978-04-01 169
1978-07-01 126
1978-10-01 177
1979-01-01 119
1979-07-01 188
1979-10-01 80
1980-01-01 21
1980-04-01 175
1980-07-01 55
1980-10-01 89
1981-04-01 402
1981-07-01 409
1981-10-01 446
1982-01-01 169
1982-04-01 109
1982-07-01 -94
1982-10-01 -22
1983-01-01 -30
1983-04-01 -27
1983-07-01 -47
1983-10-01 -137
1984-04-01 -37
1984-07-01 -153
1985-04-01 -23
1985-07-01 -35
1985-10-01 -303
1986-01-01 -3
1986-04-01 -134
1986-07-01 -25
1986-10-01 -290
1987-01-01 -183
1987-04-01 -112
1987-07-01 -179
1987-10-01 -285
1988-01-01 -29
1988-04-01 -316
1988-07-01 -497
1988-10-01 -338
1989-04-01 -117
1989-07-01 -148
1989-10-01 27
1990-01-01 949
1990-04-01 568
1990-07-01 288
1990-10-01 379
1991-01-01 228
1991-04-01 900
1991-07-01 607
1991-10-01 1381
1992-01-01 928
1992-04-01 972
1992-07-01 874
1992-10-01 1296
1993-01-01 513
1993-04-01 2622
1993-07-01 2021
1993-10-01 3599
1994-01-01 3496
1994-04-01 97
1994-07-01 299
1994-10-01 243
1995-01-01 -2212
1995-04-01 -24
1995-07-01 495
1995-10-01 1374
1996-01-01 1273
1996-04-01 3166
1996-07-01 1272
1996-10-01 3861
1997-01-01 1882
1997-04-01 4314
1997-07-01 5948
1997-10-01 9
1998-01-01 2631
1998-04-01 3038
1998-07-01 43
1998-10-01 -550
1999-01-01 -1170
1999-04-01 2989
1999-07-01 840
1999-10-01 -337
2000-01-01 1601
2000-04-01 898
2000-07-01 679
2000-10-01 -2650
2001-01-01 1112
2001-04-01 -483
2001-07-01 469
2001-10-01 76
2002-01-01 -2024
2002-04-01 -1628
2002-07-01 -2069
2002-10-01 -151
2003-01-01 -1716
2003-04-01 -1198
2003-07-01 81
2003-10-01 2242
2004-01-01 37
2004-04-01 -3502
2004-07-01 -2100
2004-10-01 -1304
2005-01-01 1261
2005-04-01 -222
2005-07-01 1003
2005-10-01 2173
2006-01-01 1940
2006-04-01 205
2006-07-01 1492
2006-10-01 2083
2007-01-01 592
2007-04-01 8820
2007-07-01 -1772
2007-10-01 2609
2008-01-01 -1289
2008-04-01 -1803
2008-07-01 -1059
2008-10-01 -3002
2009-01-01 523
2009-04-01 673
2009-07-01 8893
2009-10-01 10199
2010-01-01 9844
2010-04-01 6321
2010-07-01 5300
2010-10-01 5124
2011-01-01 8917
2011-04-01 9108
2011-07-01 4067
2011-10-01 11604
2012-01-01 8113
2012-04-01 5560
2012-07-01 12282
2012-10-01 6404
2013-01-01 8482
2013-04-01 9915
2013-07-01 11495
2013-10-01 15886
2014-01-01 3643
2014-04-01 11453
2014-07-01 12442
2014-10-01 7098
2015-01-01 4840
2015-04-01 14490
2015-07-01 2606
2015-10-01 -1380
2016-01-01 17844
2016-04-01 1839
2016-07-01 3865
2016-10-01 9794
2017-01-01 3831
2017-04-01 1139
2017-07-01 15706
2017-10-01 1211
2018-01-01 5637
2018-04-01 4045