Quarterly Millions of US Dollars
1972-04-01 25
1973-04-01 37
1973-10-01 18
1974-01-01 16
1974-04-01 17
1975-01-01 25
1977-01-01 38
1977-04-01 37
1977-07-01 87
1978-01-01 139
1978-04-01 112
1978-07-01 104
1978-10-01 128
1979-01-01 170
1979-04-01 -18
1979-07-01 221
1980-04-01 21
1980-07-01 117
1981-04-01 46
1981-07-01 43
1981-10-01 68
1982-01-01 314
1982-04-01 200
1982-07-01 37
1982-10-01 387
1983-01-01 36
1983-04-01 233
1983-07-01 1203
1983-10-01 65
1984-01-01 384
1984-04-01 28
1984-07-01 146
1984-10-01 702
1985-01-01 29
1985-04-01 906
1985-07-01 -20
1985-10-01 1330
1986-01-01 306
1986-04-01 -59
1986-07-01 -158
1986-10-01 -41
1987-04-01 5
1987-07-01 84
1987-10-01 128
1988-01-01 139
1988-04-01 -393
1988-07-01 237
1988-10-01 159
1989-01-01 66
1989-04-01 -292
1989-07-01 -4
1989-10-01 153
1990-01-01 -145
1990-04-01 560
1990-07-01 14
1990-10-01 -418
1991-04-01 82
1991-07-01 -117
1991-10-01 -193
1992-01-01 183
1992-04-01 -227
1992-10-01 2056
1993-01-01 232
1993-04-01 -45
1993-07-01 -1036
1993-10-01 -298
1994-01-01 1235
1994-04-01 -589
1994-07-01 521
1994-10-01 -432
1995-01-01 90
1995-04-01 -535
1995-07-01 53
1995-10-01 110
1996-01-01 533
1996-04-01 238
1996-07-01 1698
1996-10-01 951
1997-01-01 34
1997-04-01 1151
1997-07-01 100
1997-10-01 1172
1998-01-01 17
1998-04-01 4572
1998-07-01 -340
1998-10-01 830
1999-01-01 1635
1999-04-01 1622
1999-07-01 -562
1999-10-01 1225
2000-01-01 668
2000-04-01 343
2000-07-01 490
2000-10-01 781
2001-01-01 -347
2001-04-01 1758
2001-07-01 286
2001-10-01 630
2002-01-01 1908
2002-04-01 -782
2002-07-01 2738
2002-10-01 -429
2003-01-01 639
2003-04-01 143
2003-07-01 369
2003-10-01 1656
2004-01-01 553
2004-04-01 1183
2004-07-01 1562
2004-10-01 1371
2005-01-01 1256
2005-04-01 2409
2005-07-01 -438
2005-10-01 1877
2006-01-01 4797
2006-04-01 -726
2006-07-01 1048
2006-10-01 -1049
2007-01-01 2483
2007-04-01 -1326
2007-07-01 -480
2007-10-01 -100
2008-01-01 2338
2008-04-01 -1270
2008-07-01 -13
2008-10-01 -1568
2009-01-01 4885
2009-04-01 2150
2009-07-01 976
2009-10-01 811
2010-01-01 4060
2010-04-01 1250
2010-07-01 965
2010-10-01 2486
2011-01-01 1461
2011-04-01 1994
2011-07-01 4204
2011-10-01 -597
2012-01-01 4787
2012-04-01 8595
2012-07-01 1871
2012-10-01 1534
2013-01-01 -1000
2013-04-01 1898
2013-07-01 3179
2013-10-01 879
2014-01-01 4750
2014-04-01 3083
2014-07-01 -185
2014-10-01 6140
2015-01-01 7330
2015-04-01 -1953
2015-07-01 9397
2015-10-01 6745
2016-01-01 2410
2016-04-01 8226
2016-07-01 -197
2016-10-01 5628
2017-01-01 3138
2017-04-01 815
2017-07-01 7833
2017-10-01 8904
2018-01-01 20
2018-04-01 6883