Quarterly Millions of US Dollars
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 0
1983-07-01 38
1983-10-01 37
1984-01-01 39
1984-04-01 36
1984-07-01 30
1984-10-01 72
1985-01-01 72
1985-04-01 72
1985-07-01 44
1985-10-01 25
1986-01-01 25
1986-04-01 25
1986-07-01 25
1986-10-01 18
1987-01-01 18
1987-04-01 18
1987-07-01 86
1987-10-01 82
1988-01-01 121
1988-04-01 112
1988-07-01 177
1988-10-01 190
1989-01-01 143
1989-04-01 132
1989-07-01 0
1989-10-01 75
1990-01-01 75
1990-04-01 141
1990-07-01 154
1990-10-01 74
1991-01-01 71
1991-04-01 184
1991-07-01 178
1991-10-01 178
1992-01-01 232
1992-04-01 58
1992-07-01 63
1992-10-01 491
1993-01-01 456
1993-04-01 481
1993-07-01 497
1993-10-01 58
1994-01-01 94
1994-04-01 550
1994-07-01 630
1994-10-01 630
1995-01-01 130
1995-04-01 182
1995-07-01 102
1995-10-01 102
1996-01-01 90
1996-04-01 155
1996-07-01 421
1996-10-01 867
1997-01-01 1185
1997-04-01 1198
1997-07-01 935
1997-10-01 1001
1998-01-01 658
1998-04-01 850
1998-07-01 1196
1998-10-01 1544
1999-01-01 1368
1999-04-01 1322
1999-07-01 493
1999-10-01 632
2000-01-01 1209
2000-04-01 1320
2000-07-01 1455
2000-10-01 916
2001-01-01 617
2001-04-01 258
2001-07-01 263
2001-10-01 262
2002-01-01 185
2002-04-01 320
2002-07-01 150
2002-10-01 150
2003-01-01 270
2003-04-01 120
2003-07-01 120
2003-10-01 120
2004-01-01 0
2004-04-01 17
2004-07-01 61
2004-10-01 508
2005-01-01 509
2005-04-01 728
2005-07-01 1079
2005-10-01 680
2006-01-01 1882
2006-04-01 792
2006-07-01 392
2006-10-01 522
2007-01-01 321
2007-04-01 772
2007-07-01 826
2007-10-01 954
2008-01-01 1251
2008-04-01 849
2008-07-01 801
2008-10-01 625
2009-01-01 325
2009-04-01 125
2009-07-01 342
2009-10-01 417
2010-01-01 1032
2010-04-01 1032
2010-07-01 815
2010-10-01 775
2011-01-01 205
2011-04-01 330
2011-07-01 413
2011-10-01 588
2012-01-01 668
2012-04-01 993
2012-07-01 1060
2012-10-01 725
2013-01-01 1900
2013-04-01 3500
2013-07-01 3725
2013-10-01 4525
2014-01-01 3505
2014-04-01 2985
2014-07-01 2610
2014-10-01 1810
2015-01-01 2480
2015-04-01 950
2015-07-01 950
2015-10-01 1100
2016-01-01 1650
2016-04-01 2490
2016-07-01 3220
2016-10-01 3139
2017-01-01 4588
2017-04-01 5080
2017-07-01 4552
2017-10-01 6479
2018-01-01 9041
2018-04-01 8263