Quarterly Millions of US Dollars
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 20
1979-07-01 20
1979-10-01 20
1980-01-01 20
1980-04-01 0
1980-07-01 0
1980-10-01 0
1981-01-01 15
1981-04-01 14
1981-07-01 39
1981-10-01 39
1982-01-01 55
1982-04-01 55
1982-07-01 30
1982-10-01 30
1983-01-01 20
1983-04-01 20
1983-07-01 20
1983-10-01 20
1984-01-01 0
1984-04-01 0
1984-07-01 0
1984-10-01 55
1985-01-01 76
1985-04-01 76
1985-07-01 76
1985-10-01 33
1986-01-01 15
1986-04-01 15
1986-07-01 41
1986-10-01 29
1987-01-01 109
1987-04-01 108
1987-07-01 82
1987-10-01 96
1988-01-01 0
1988-04-01 0
1988-07-01 0
1988-10-01 0
1989-01-01 0
1989-04-01 0
1989-07-01 24
1989-10-01 43
1990-01-01 43
1990-04-01 43
1990-07-01 18
1990-10-01 0
1991-01-01 0
1991-04-01 0
1991-07-01 0
1991-10-01 0
1992-01-01 38
1992-04-01 40
1992-07-01 42
1992-10-01 40
1993-01-01 104
1993-04-01 114
1993-07-01 114
1993-10-01 107
1994-01-01 0
1994-04-01 0
1994-07-01 0
1994-10-01 0
1995-01-01 0
1995-04-01 0
1995-07-01 0
1995-10-01 0
1996-01-01 2
1996-04-01 7
1996-07-01 2
1996-10-01 7
1997-01-01 0
1997-04-01 9
1997-07-01 9
1997-10-01 615
1998-01-01 614
1998-04-01 614
1998-07-01 614
1998-10-01 1
1999-01-01 1
1999-04-01 26
1999-07-01 26
1999-10-01 26
2000-01-01 26
2000-04-01 145
2000-07-01 188
2000-10-01 992
2001-01-01 1519
2001-04-01 1374
2001-07-01 1655
2001-10-01 1252
2002-01-01 832
2002-04-01 834
2002-07-01 557
2002-10-01 156
2003-01-01 446
2003-04-01 469
2003-07-01 431
2003-10-01 431
2004-01-01 33
2004-04-01 9
2004-07-01 0
2004-10-01 19
2005-01-01 408
2005-04-01 992
2005-07-01 1350
2005-10-01 1323
2006-01-01 969
2006-04-01 359
2006-07-01 0
2006-10-01 0
2007-01-01 0
2007-04-01 1078
2007-07-01 1078
2007-10-01 1078
2008-01-01 1078
2008-04-01 0
2008-07-01 0
2008-10-01 0
2009-01-01 0
2009-04-01 0
2009-07-01 0
2009-10-01 150
2010-01-01 572
2010-04-01 572
2010-07-01 572
2010-10-01 422
2011-01-01 150
2011-04-01 150
2011-07-01 430
2011-10-01 430
2012-01-01 280
2012-04-01 280
2012-07-01 0
2012-10-01 170
2013-01-01 170
2013-04-01 170
2013-07-01 170
2013-10-01 220
2014-01-01 1691
2014-04-01 1691
2014-07-01 1691
2014-10-01 1471
2015-01-01 0
2015-04-01 0
2015-07-01 0
2015-10-01 0
2016-01-01 0
2016-04-01 0
2016-07-01 125
2016-10-01 425
2017-01-01 425
2017-04-01 613
2017-07-01 485
2017-10-01 563
2018-01-01 570
2018-04-01 376