Quarter	Dollars
1973-01-01	3816000000
1973-04-01	-1952000000
1973-07-01	-527000000
1973-10-01	-4850000000
1974-01-01	2390000000
1974-04-01	252000000
1974-07-01	1828000000
1974-10-01	388000000
1975-01-01	-8632000000
1975-04-01	-4984000000
1975-07-01	-1211000000
1975-10-01	-6915000000
1976-01-01	-3794000000
1976-04-01	-3160000000
1976-07-01	-1500000000
1976-10-01	-3198000000
1977-01-01	1532000000
1977-04-01	2293000000
1977-07-01	7356000000
1977-10-01	6990000000
1978-01-01	2350000000
1978-04-01	-5073000000
1978-07-01	6621000000
1978-10-01	-53000000
1979-01-01	-1126000000
1979-04-01	-9881000000
1979-07-01	-4807000000
1979-10-01	-9225000000
1980-01-01	-1091000000
1980-04-01	-14346000000
1980-07-01	-3428000000
1980-10-01	2004000000
1981-01-01	-8669000000
1981-04-01	-8356000000
1981-07-01	-215000000
1981-10-01	-6176000000
1982-01-01	-8166000000
1982-04-01	-6221000000
1982-07-01	-3853000000
1982-10-01	-4313000000
1983-01-01	-11852000000
1983-04-01	13658000000
1983-07-01	8332000000
1983-10-01	16977000000
1984-01-01	15355000000
1984-04-01	17610000000
1984-07-01	24169000000
1984-10-01	26051000000
1985-01-01	12718000000
1985-04-01	27630000000
1985-07-01	33281000000
1985-10-01	34883000000
1986-01-01	22698000000
1986-04-01	27099000000
1986-07-01	36829000000
1986-10-01	29660000000
1987-01-01	47156000000
1987-04-01	25711000000
1987-07-01	54585000000
1987-10-01	31202000000
1988-01-01	31372000000
1988-04-01	48143000000
1988-07-01	8949000000
1988-10-01	53715000000
1989-01-01	14055000000
1989-04-01	12220000000
1989-07-01	25727000000
1989-10-01	20681000000
1990-01-01	16064000000
1990-04-01	2186000000
1990-07-01	16582000000
1990-10-01	25390000000
1991-01-01	-3967000000
1991-04-01	10580000000
1991-07-01	11698000000
1991-10-01	19732000000
1992-01-01	18510000000
1992-04-01	30877000000
1992-07-01	18615000000
1992-10-01	22028000000
1993-01-01	2778000000
1993-04-01	11257000000
1993-07-01	31986000000
1993-10-01	34611000000
1994-01-01	46874000000
1994-04-01	6146000000
1994-07-01	48426000000
1994-10-01	17456000000
1995-01-01	34547100000
1995-04-01	5373600000
1995-07-01	69926500000
1995-10-01	-17285400000
1996-01-01	540800000
1996-04-01	31796400000
1996-07-01	43873000000
1996-10-01	51629400000
1997-01-01	11953800000
1997-04-01	45427800000
1997-07-01	47021700000
1997-10-01	115544600000
1998-01-01	1266000000
1998-04-01	16314000000
1998-07-01	17837000000
1998-10-01	38320000000
1999-01-01	14788000000
1999-04-01	64786000000
1999-07-01	29101000000
1999-10-01	120725000000
2000-01-01	31525000000
2000-04-01	137149000000
2000-07-01	159614000000
2000-10-01	149703000000
2001-01-01	109401000000
2001-04-01	119579000000
2001-07-01	60391000000
2001-10-01	115792000000
2002-01-01	85003000000
2002-04-01	91677000000
2002-07-01	160517000000
2002-10-01	167000000000
2003-01-01	154054000000
2003-04-01	59762500000
2003-07-01	128533000000
2003-10-01	189006300000
2004-01-01	99649900000
2004-04-01	159263400000
2004-07-01	99841500000
2004-10-01	170770900000
2005-01-01	95409800000
2005-04-01	84446100000
2005-07-01	208684700000
2005-10-01	298080900000
2006-01-01	150391500000
2006-04-01	198568500000
2006-07-01	239973900000
2006-10-01	217840300000
2007-01-01	245921800000
2007-04-01	151922700000
2007-07-01	75398600000
2007-10-01	144138000000
2008-01-01	193953200000
2008-04-01	154022200000
2008-07-01	172342800000
2008-10-01	215097100000