Quarterly Millions of US Dollars
1983-07-01 0
1983-10-01 0
1984-01-01 0
1984-04-01 0
1984-07-01 0
1984-10-01 0
1985-01-01 0
1985-04-01 0
1985-07-01 0
1985-10-01 0
1986-01-01 0
1986-04-01 0
1986-07-01 0
1986-10-01 0
1987-01-01 0
1987-04-01 0
1987-07-01 54
1987-10-01 63
1988-01-01 60
1988-04-01 55
1988-07-01 0
1988-10-01 0
1989-01-01 0
1989-04-01 46
1989-07-01 46
1989-10-01 46
1990-01-01 46
1990-04-01 0
1990-07-01 0
1990-10-01 0
1991-01-01 0
1991-04-01 83
1991-07-01 90
1991-10-01 99
1992-01-01 91
1992-04-01 0
1992-07-01 0
1992-10-01 93
1993-01-01 93
1993-04-01 239
1993-07-01 387
1993-10-01 294
1994-01-01 314
1994-04-01 158
1994-07-01 47
1994-10-01 46
1995-01-01 32
1995-04-01 22
1995-07-01 22
1995-10-01 12
1996-01-01 12
1996-04-01 18
1996-07-01 5
1996-10-01 2
1997-01-01 22
1997-04-01 22
1997-07-01 88
1997-10-01 82
1998-01-01 78
1998-04-01 82
1998-07-01 8
1998-10-01 8
1999-01-01 5
1999-04-01 15
1999-07-01 15
1999-10-01 15
2000-01-01 15
2000-04-01 20
2000-07-01 75
2000-10-01 75
2001-01-01 75
2001-04-01 137
2001-07-01 232
2001-10-01 390
2002-01-01 375
2002-04-01 388
2002-07-01 280
2002-10-01 152
2003-01-01 232
2003-04-01 110
2003-07-01 647
2003-10-01 663
2004-01-01 695
2004-04-01 647
2004-07-01 25
2004-10-01 14
2005-01-01 92
2005-04-01 292
2005-07-01 274
2005-10-01 303
2006-01-01 262
2006-04-01 400
2006-07-01 457
2006-10-01 458
2007-01-01 968
2007-04-01 864
2007-07-01 885
2007-10-01 937
2008-01-01 513
2008-04-01 437
2008-07-01 417
2008-10-01 419
2009-01-01 378
2009-04-01 146
2009-07-01 110
2009-10-01 501
2010-01-01 1180
2010-04-01 1161
2010-07-01 1475
2010-10-01 1136
2011-01-01 1034
2011-04-01 1074
2011-07-01 931
2011-10-01 861
2012-01-01 595
2012-04-01 745
2012-07-01 612
2012-10-01 732
2013-01-01 396
2013-04-01 959
2013-07-01 895
2013-10-01 1136
2014-01-01 1419
2014-04-01 1746
2014-07-01 1736
2014-10-01 1880
2015-01-01 1607
2015-04-01 530
2015-07-01 796
2015-10-01 288
2016-01-01 270
2016-04-01 1257
2016-07-01 1058
2016-10-01 1852
2017-01-01 1859
2017-04-01 1049
2017-07-01 987
2017-10-01 917
2018-01-01 919
2018-04-01 876