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 56
1981-07-01 82
1981-10-01 84
1982-01-01 138
1982-04-01 96
1982-07-01 70
1982-10-01 72
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 66
1985-01-01 70
1985-04-01 70
1985-07-01 72
1985-10-01 76
1986-01-01 82
1986-04-01 88
1986-07-01 119
1986-10-01 31
1987-01-01 111
1987-04-01 110
1987-07-01 84
1987-10-01 179
1988-01-01 110
1988-04-01 101
1988-07-01 99
1988-10-01 27
1989-01-01 38
1989-04-01 35
1989-07-01 60
1989-10-01 77
1990-01-01 43
1990-04-01 43
1990-07-01 49
1990-10-01 32
1991-01-01 31
1991-04-01 31
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 5
1994-10-01 10
1995-01-01 10
1995-04-01 0
1995-07-01 0
1995-10-01 0
1996-01-01 465
1996-04-01 14
1996-07-01 14
1996-10-01 14
1997-01-01 14
1997-04-01 44
1997-07-01 41
1997-10-01 652
1998-01-01 651
1998-04-01 613
1998-07-01 613
1998-10-01 30
1999-01-01 30
1999-04-01 56
1999-07-01 456
1999-10-01 631
2000-01-01 631
2000-04-01 1250
2000-07-01 893
2000-10-01 1492
2001-01-01 2019
2001-04-01 1482
2001-07-01 1656
2001-10-01 1250
2002-01-01 828
2002-04-01 1248
2002-07-01 1536
2002-10-01 1135
2003-01-01 2225
2003-04-01 1747
2003-07-01 1482
2003-10-01 2386
2004-01-01 2354
2004-04-01 3686
2004-07-01 3712
2004-10-01 2916
2005-01-01 1637
2005-04-01 2869
2005-07-01 4067
2005-10-01 4402
2006-01-01 5411
2006-04-01 2819
2006-07-01 1480
2006-10-01 1969
2007-01-01 2738
2007-04-01 4165
2007-07-01 4815
2007-10-01 3947
2008-01-01 3027
2008-04-01 1553
2008-07-01 1124
2008-10-01 3365
2009-01-01 3965
2009-04-01 3765
2009-07-01 3414
2009-10-01 1865
2010-01-01 1222
2010-04-01 2122
2010-07-01 2872
2010-10-01 2172
2011-01-01 2500
2011-04-01 2222
2011-07-01 2504
2011-10-01 2476
2012-01-01 2972
2012-04-01 3205
2012-07-01 2182
2012-10-01 2182
2013-01-01 957
2013-04-01 2839
2013-07-01 4032
2013-10-01 4032
2014-01-01 5753
2014-04-01 4221
2014-07-01 3471
2014-10-01 3471
2015-01-01 2500
2015-04-01 2250
2015-07-01 1750
2015-10-01 2250
2016-01-01 3000
2016-04-01 2000
2016-07-01 2300
2016-10-01 7195
2017-01-01 6396
2017-04-01 7333
2017-07-01 7035
2017-10-01 5056
2018-01-01 4387
2018-04-01 4539