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
1984-10-01 159
1985-01-01 179
1985-04-01 179
1985-07-01 181
1985-10-01 77
1986-01-01 59
1986-04-01 62
1986-07-01 89
1986-10-01 32
1987-01-01 112
1987-04-01 108
1987-07-01 82
1987-10-01 97
1988-01-01 1
1988-04-01 60
1988-07-01 131
1988-10-01 135
1989-01-01 132
1989-04-01 71
1989-07-01 78
1989-10-01 222
1990-01-01 222
1990-04-01 222
1990-07-01 138
1990-10-01 0
1991-01-01 103
1991-04-01 180
1991-07-01 183
1991-10-01 179
1992-01-01 114
1992-04-01 40
1992-07-01 42
1992-10-01 133
1993-01-01 197
1993-04-01 203
1993-07-01 206
1993-10-01 107
1994-01-01 0
1994-04-01 0
1994-07-01 0
1994-10-01 127
1995-01-01 138
1995-04-01 138
1995-07-01 135
1995-10-01 0
1996-01-01 162
1996-04-01 207
1996-07-01 138
1996-10-01 107
1997-01-01 0
1997-04-01 9
1997-07-01 84
1997-10-01 690
1998-01-01 689
1998-04-01 694
1998-07-01 619
1998-10-01 10
1999-01-01 10
1999-04-01 36
1999-07-01 35
1999-10-01 35
2000-01-01 35
2000-04-01 155
2000-07-01 197
2000-10-01 1002
2001-01-01 1529
2001-04-01 1383
2001-07-01 1664
2001-10-01 1261
2002-01-01 841
2002-04-01 843
2002-07-01 566
2002-10-01 165
2003-01-01 456
2003-04-01 478
2003-07-01 455
2003-10-01 455
2004-01-01 66
2004-04-01 41
2004-07-01 21
2004-10-01 41
2005-01-01 421
2005-04-01 1001
2005-07-01 1355
2005-10-01 1333
2006-01-01 979
2006-04-01 373
2006-07-01 14
2006-10-01 9
2007-01-01 9
2007-04-01 1087
2007-07-01 1087
2007-10-01 1087
2008-01-01 1087
2008-04-01 9
2008-07-01 9
2008-10-01 5
2009-01-01 5
2009-04-01 9
2009-07-01 9
2009-10-01 164
2010-01-01 586
2010-04-01 677
2010-07-01 707
2010-10-01 569
2011-01-01 281
2011-04-01 536
2011-07-01 723
2011-10-01 597
2012-01-01 458
2012-04-01 482
2012-07-01 195
2012-10-01 338
2013-01-01 343
2013-04-01 382
2013-07-01 359
2013-10-01 791
2014-01-01 2252
2014-04-01 2402
2014-07-01 2407
2014-10-01 1749
2015-01-01 571
2015-04-01 555
2015-07-01 637
2015-10-01 947
2016-01-01 614
2016-04-01 896
2016-07-01 1003
2016-10-01 988
2017-01-01 1049
2017-04-01 1445
2017-07-01 1376
2017-10-01 1458
2018-01-01 1396
2018-04-01 624