Quarter	Millions of US Dollars
1962-10-01	0
1963-01-01	0
1963-04-01	0
1963-07-01	0
1963-10-01	0
1964-01-01	0
1964-04-01	0
1964-07-01	0
1964-10-01	0
1965-01-01	0
1965-04-01	0
1965-07-01	0
1965-10-01	0
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	0
1978-04-01	0
1978-07-01	0
1978-10-01	0
1979-01-01	0
1979-04-01	0
1979-07-01	0
1979-10-01	0
1980-01-01	0
1980-04-01	0
1980-07-01	0
1980-10-01	0
1981-01-01	0
1981-04-01	0
1981-07-01	0
1981-10-01	14
1982-01-01	29
1982-04-01	28
1982-07-01	28
1982-10-01	15
1983-01-01	0
1983-04-01	12
1983-07-01	12
1983-10-01	11
1984-01-01	12
1984-04-01	0
1984-07-01	0
1984-10-01	51
1985-01-01	52
1985-04-01	52
1985-07-01	61
1985-10-01	24
1986-01-01	42
1986-04-01	50
1986-07-01	52
1986-10-01	50
1987-01-01	52
1987-04-01	43
1987-07-01	40
1987-10-01	36
1988-01-01	25
1988-04-01	33
1988-07-01	29
1988-10-01	36
1989-01-01	63
1989-04-01	51
1989-07-01	52
1989-10-01	43
1990-01-01	8
1990-04-01	8
1990-07-01	8
1990-10-01	8
1991-01-01	8
1991-04-01	65
1991-07-01	68
1991-10-01	82
1992-01-01	116
1992-04-01	57
1992-07-01	191
1992-10-01	211
1993-01-01	175
1993-04-01	338
1993-07-01	430
1993-10-01	387
1994-01-01	359
1994-04-01	179
1994-07-01	257
1994-10-01	281
1995-01-01	306
1995-04-01	420
1995-07-01	402
1995-10-01	381
1996-01-01	568
1996-04-01	401
1996-07-01	209
1996-10-01	373
1997-01-01	292
1997-04-01	228
1997-07-01	327
1997-10-01	318
1998-01-01	425
1998-04-01	407
1998-07-01	393
1998-10-01	455
1999-01-01	543
1999-04-01	622
1999-07-01	906
1999-10-01	971
2000-01-01	726
2000-04-01	1251
2000-07-01	1358
2000-10-01	1260
2001-01-01	1490
2001-04-01	1019
2001-07-01	1126
2001-10-01	1642
2002-01-01	1348
2002-04-01	1769
2002-07-01	1882
2002-10-01	1560
2003-01-01	1947
2003-04-01	2716
2003-07-01	2730
2003-10-01	3117
2004-01-01	2807
2004-04-01	2912
2004-07-01	3939
2004-10-01	4721
2005-01-01	4348
2005-04-01	4737
2005-07-01	4992
2005-10-01	5940
2006-01-01	7981
2006-04-01	8364
2006-07-01	9514
2006-10-01	10991
2007-01-01	9683
2007-04-01	10042
2007-07-01	8729
2007-10-01	8530
2008-01-01	10563
2008-04-01	11430
2008-07-01	10880
2008-10-01	11117
2009-01-01	10783
2009-04-01	11174
2009-07-01	9924
2009-10-01	9512
2010-01-01	6986
2010-04-01	5616
2010-07-01	7846
2010-10-01	8852
2011-01-01	10150
2011-04-01	9858
2011-07-01	9452
2011-10-01	6364
2012-01-01	4463
2012-04-01	2848
2012-07-01	1240
2012-10-01	956
2013-01-01	992
2013-04-01	1267
2013-07-01	1044
2013-10-01	1073
2014-01-01	1503
2014-04-01	1151
2014-07-01	2310
2014-10-01	2100
2015-01-01	1577
2015-04-01	5278
2015-07-01	3397
2015-10-01	4052
2016-01-01	3999
2016-04-01	1261
2016-07-01	1095
2016-10-01	374
2017-01-01	709
2017-04-01	651
2017-07-01	698
2017-10-01	783
2018-01-01	779
2018-04-01	1124