Quarterly Millions of US Dollars
1972-01-01 31
1972-07-01 33
1974-07-01 75
1975-01-01 109
1975-04-01 139
1975-10-01 38
1976-01-01 78
1976-04-01 237
1976-07-01 300
1976-10-01 200
1977-07-01 360
1977-10-01 335
1978-01-01 584
1978-04-01 250
1978-07-01 371
1978-10-01 261
1979-01-01 298
1979-10-01 122
1980-01-01 225
1980-04-01 -50
1980-07-01 -3
1981-01-01 36
1981-04-01 53
1981-07-01 62
1981-10-01 302
1982-01-01 -121
1982-04-01 44
1982-07-01 435
1982-10-01 282
1983-01-01 60
1983-04-01 -261
1983-07-01 364
1983-10-01 396
1984-01-01 84
1984-04-01 -8
1984-07-01 108
1984-10-01 375
1985-01-01 176
1985-04-01 449
1985-07-01 284
1985-10-01 551
1986-01-01 788
1986-04-01 185
1986-07-01 -41
1986-10-01 777
1987-01-01 381
1987-04-01 311
1987-07-01 109
1987-10-01 -212
1988-01-01 -125
1988-04-01 -147
1988-10-01 -82
1989-01-01 246
1989-04-01 15
1989-07-01 -70
1989-10-01 -767
1990-01-01 -152
1990-04-01 -127
1990-07-01 -393
1990-10-01 -904
1991-01-01 -126
1991-04-01 -361
1991-07-01 63
1991-10-01 -346
1992-01-01 -152
1992-04-01 -311
1992-07-01 -978
1992-10-01 -406
1993-01-01 -340
1993-04-01 -412
1993-07-01 3088
1993-10-01 -758
1994-01-01 287
1994-04-01 -1601
1994-07-01 907
1994-10-01 2547
1995-01-01 819
1995-04-01 -467
1995-07-01 1338
1995-10-01 -1120
1996-01-01 -1424
1996-04-01 953
1996-07-01 583
1996-10-01 260
1997-01-01 1150
1997-04-01 1297
1997-07-01 -932
1997-10-01 -889
1998-01-01 -1004
1998-04-01 -276
1998-07-01 106
1998-10-01 322
1999-01-01 124
1999-04-01 -836
1999-07-01 -902
1999-10-01 -1517
2000-01-01 -283
2000-04-01 -1040
2000-07-01 444
2000-10-01 210
2001-01-01 7
2001-04-01 -912
2001-07-01 541
2001-10-01 -937
2002-01-01 535
2002-04-01 -910
2002-07-01 0
2002-10-01 976
2003-01-01 -460
2003-04-01 -726
2003-07-01 2
2003-10-01 822
2004-01-01 -145
2004-04-01 -1127
2004-07-01 1638
2004-10-01 -254
2005-01-01 778
2005-04-01 -532
2005-07-01 -1518
2005-10-01 1755
2006-01-01 -2077
2006-04-01 467
2006-07-01 -313
2006-10-01 1044
2007-01-01 -147
2007-04-01 -55
2007-07-01 1975
2007-10-01 -425
2008-01-01 -1573
2008-04-01 -677
2008-07-01 -1264
2008-10-01 2758
2009-01-01 -921
2009-04-01 1192
2009-07-01 1420
2009-10-01 -2266
2010-01-01 -654
2010-04-01 406
2010-07-01 14
2010-10-01 -433
2011-01-01 -312
2011-04-01 3099
2011-07-01 672
2011-10-01 -226
2012-01-01 -1367
2012-04-01 -2592
2012-07-01 -1009
2012-10-01 3251
2013-01-01 -1184
2013-04-01 -2601
2013-07-01 1877
2013-10-01 925
2014-01-01 -2111
2014-04-01 -2059
2014-07-01 -1559
2014-10-01 170
2015-01-01 779
2015-04-01 -1604
2015-07-01 -165
2015-10-01 786
2016-01-01 241
2016-04-01 1200
2016-07-01 -1627
2016-10-01 919
2017-01-01 -763
2017-04-01 -204
2017-07-01 -405
2017-10-01 308
2018-01-01 -629
2018-04-01 791