Quarterly Millions of US Dollars
1968-07-01 0
1968-10-01 0
1969-01-01 0
1969-04-01 0
1969-07-01 0
1969-10-01 0
1970-01-01 0
1970-04-01 0
1970-07-01 0
1970-10-01 0
1971-01-01 0
1971-04-01 0
1971-07-01 0
1971-10-01 0
1972-01-01 0
1972-04-01 0
1972-07-01 0
1972-10-01 0
1973-01-01 0
1973-04-01 0
1973-07-01 0
1973-10-01 0
1974-01-01 0
1974-04-01 0
1974-07-01 0
1974-10-01 0
1975-01-01 0
1975-04-01 0
1975-07-01 0
1975-10-01 0
1976-01-01 0
1976-04-01 0
1976-07-01 0
1976-10-01 0
1977-01-01 0
1977-04-01 0
1977-07-01 0
1977-10-01 0
1978-01-01 0
1978-04-01 0
1978-07-01 0
1978-10-01 0
1979-01-01 0
1979-04-01 0
1979-07-01 0
1979-10-01 0
1980-01-01 0
1980-04-01 0
1980-07-01 0
1980-10-01 0
1981-01-01 0
1981-04-01 0
1981-07-01 0
1981-10-01 0
1982-01-01 0
1982-04-01 0
1982-07-01 0
1982-10-01 0
1983-01-01 0
1983-04-01 20
1983-07-01 20
1983-10-01 20
1984-01-01 20
1984-04-01 0
1984-07-01 0
1984-10-01 58
1985-01-01 58
1985-04-01 88
1985-07-01 89
1985-10-01 30
1986-01-01 30
1986-04-01 0
1986-07-01 24
1986-10-01 32
1987-01-01 47
1987-04-01 72
1987-07-01 52
1987-10-01 164
1988-01-01 147
1988-04-01 118
1988-07-01 111
1988-10-01 6
1989-01-01 28
1989-04-01 28
1989-07-01 28
1989-10-01 29
1990-01-01 6
1990-04-01 39
1990-07-01 78
1990-10-01 80
1991-01-01 402
1991-04-01 406
1991-07-01 388
1991-10-01 596
1992-01-01 619
1992-04-01 709
1992-07-01 843
1992-10-01 735
1993-01-01 543
1993-04-01 405
1993-07-01 539
1993-10-01 814
1994-01-01 610
1994-04-01 665
1994-07-01 877
1994-10-01 597
1995-01-01 645
1995-04-01 671
1995-07-01 438
1995-10-01 373
1996-01-01 571
1996-04-01 408
1996-07-01 573
1996-10-01 476
1997-01-01 379
1997-04-01 446
1997-07-01 432
1997-10-01 427
1998-01-01 385
1998-04-01 648
1998-07-01 772
1998-10-01 1206
1999-01-01 1417
1999-04-01 1215
1999-07-01 951
1999-10-01 532
2000-01-01 1103
2000-04-01 1108
2000-07-01 664
2000-10-01 660
2001-01-01 520
2001-04-01 300
2001-07-01 540
2001-10-01 1196
2002-01-01 1264
2002-04-01 1274
2002-07-01 883
2002-10-01 462
2003-01-01 334
2003-04-01 810
2003-07-01 1044
2003-10-01 936
2004-01-01 843
2004-04-01 397
2004-07-01 289
2004-10-01 422
2005-01-01 150
2005-04-01 175
2005-07-01 125
2005-10-01 125
2006-01-01 637
2006-04-01 1258
2006-07-01 2665
2006-10-01 2899
2007-01-01 2795
2007-04-01 2197
2007-07-01 677
2007-10-01 947
2008-01-01 2382
2008-04-01 3131
2008-07-01 3865
2008-10-01 4486
2009-01-01 5559
2009-04-01 6409
2009-07-01 6839
2009-10-01 7619
2010-01-01 7274
2010-04-01 8037
2010-07-01 7262
2010-10-01 7440
2011-01-01 8629
2011-04-01 8730
2011-07-01 10510
2011-10-01 11656
2012-01-01 10719
2012-04-01 9187
2012-07-01 6867
2012-10-01 3635
2013-01-01 2449
2013-04-01 2933
2013-07-01 4005
2013-10-01 7671
2014-01-01 9995
2014-04-01 8928
2014-07-01 10512
2014-10-01 9003
2015-01-01 8313
2015-04-01 10780
2015-07-01 10693
2015-10-01 12021
2016-01-01 9602
2016-04-01 8347
2016-07-01 11858
2016-10-01 9151
2017-01-01 11491
2017-04-01 13550
2017-07-01 8373
2017-10-01 10514
2018-01-01 10774
2018-04-01 10810