Quarterly Millions of US Dollars
1966-01-01 0
1966-04-01 0
1966-07-01 0
1966-10-01 0
1967-01-01 0
1967-04-01 0
1967-07-01 0
1967-10-01 0
1968-01-01 0
1968-04-01 0
1968-07-01 0
1968-10-01 0
1969-01-01 0
1969-04-01 0
1969-07-01 0
1969-10-01 0
1970-01-01 0
1970-04-01 0
1970-07-01 0
1970-10-01 0
1971-01-01 0
1971-04-01 0
1971-07-01 0
1971-10-01 0
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 28
1978-04-01 27
1978-07-01 93
1978-10-01 147
1979-01-01 113
1979-04-01 141
1979-07-01 243
1979-10-01 183
1980-01-01 167
1980-04-01 153
1980-07-01 100
1980-10-01 151
1981-01-01 180
1981-04-01 170
1981-07-01 141
1981-10-01 101
1982-01-01 189
1982-04-01 444
1982-07-01 407
1982-10-01 436
1983-01-01 307
1983-04-01 263
1983-07-01 366
1983-10-01 395
1984-01-01 404
1984-04-01 205
1984-07-01 57
1984-10-01 284
1985-01-01 400
1985-04-01 769
1985-07-01 922
1985-10-01 856
1986-01-01 844
1986-04-01 678
1986-07-01 861
1986-10-01 1023
1987-01-01 1373
1987-04-01 1201
1987-07-01 1003
1987-10-01 776
1988-01-01 790
1988-04-01 995
1988-07-01 1534
1988-10-01 1640
1989-01-01 1229
1989-04-01 1144
1989-07-01 542
1989-10-01 898
1990-01-01 438
1990-04-01 185
1990-07-01 366
1990-10-01 971
1991-01-01 892
1991-04-01 1727
1991-07-01 1798
1991-10-01 1406
1992-01-01 2022
1992-04-01 1904
1992-07-01 2327
1992-10-01 2141
1993-01-01 1623
1993-04-01 1548
1993-07-01 2286
1993-10-01 2198
1994-01-01 2540
1994-04-01 2196
1994-07-01 2116
1994-10-01 2136
1995-01-01 1968
1995-04-01 1461
1995-07-01 1727
1995-10-01 1643
1996-01-01 2213
1996-04-01 2716
1996-07-01 2222
1996-10-01 2372
1997-01-01 1215
1997-04-01 917
1997-07-01 771
1997-10-01 1300
1998-01-01 1151
1998-04-01 1154
1998-07-01 958
1998-10-01 1000
1999-01-01 375
1999-04-01 693
1999-07-01 1155
1999-10-01 1057
2000-01-01 1262
2000-04-01 1030
2000-07-01 788
2000-10-01 794
2001-01-01 412
2001-04-01 594
2001-07-01 733
2001-10-01 669
2002-01-01 641
2002-04-01 405
2002-07-01 360
2002-10-01 336
2003-01-01 519
2003-04-01 669
2003-07-01 603
2003-10-01 938
2004-01-01 513
2004-04-01 764
2004-07-01 837
2004-10-01 994
2005-01-01 600
2005-04-01 476
2005-07-01 276
2005-10-01 466
2006-01-01 300
2006-04-01 300
2006-07-01 300
2006-10-01 25
2007-01-01 148
2007-04-01 529
2007-07-01 556
2007-10-01 555
2008-01-01 401
2008-04-01 0
2008-07-01 100
2008-10-01 0
2009-01-01 100
2009-04-01 100
2009-07-01 0
2009-10-01 0
2010-01-01 150
2010-04-01 150
2010-07-01 150
2010-10-01 150
2011-01-01 50
2011-04-01 374
2011-07-01 380
2011-10-01 508
2012-01-01 444
2012-04-01 126
2012-07-01 129
2012-10-01 885
2013-01-01 1824
2013-04-01 0
2013-07-01 8
2013-10-01 8
2014-01-01 8
2014-04-01 8
2014-07-01 0
2014-10-01 0
2015-01-01 0
2015-04-01 500
2015-07-01 600
2015-10-01 300
2016-01-01 300
2016-04-01 100
2016-07-01 0
2016-10-01 0
2017-01-01 0
2017-04-01 0
2017-07-01 0
2017-10-01 0
2018-01-01 0
2018-04-01 0