Quarter	Percent, Seasonally Adjusted
1974-07-01	17874000000
1974-10-01	17208000000
1975-01-01	15564000000
1975-04-01	15598000000
1975-07-01	16324000000
1975-10-01	16815000000
1976-01-01	16003000000
1976-04-01	16394000000
1976-07-01	16611000000
1976-10-01	16867000000
1977-01-01	16766000000
1977-04-01	16910000000
1977-07-01	16690000000
1977-10-01	16551000000
1978-01-01	16601000000
1978-04-01	17022000000
1978-07-01	17036000000
1978-10-01	17267000000
1979-01-01	17580000000
1979-04-01	17735000000
1979-07-01	18135000000
1979-10-01	18014000000
1980-01-01	18451000000
1980-04-01	18018000000
1980-07-01	18132000000
1980-10-01	18662000000
1981-01-01	18696000000
1981-04-01	18616000000
1981-07-01	18864000000
1981-10-01	19125000000
1982-01-01	18945000000
1982-04-01	19010000000
1982-07-01	18555000000
1982-10-01	17096000000
1983-01-01	16721000000
1983-04-01	17326000000
1983-07-01	17254000000
1983-10-01	17567000000
1984-01-01	18012000000
1984-04-01	17921000000
1984-07-01	18714000000
1984-10-01	18010000000
1985-01-01	18550000000
1985-04-01	19096000000
1985-07-01	18890000000
1985-10-01	18903000000
1986-01-01	18591000000
1986-04-01	18458000000
1986-07-01	19034000000
1986-10-01	18930000000
1987-01-01	19159000000
1987-04-01	19767000000
1987-07-01	20016000000
1987-10-01	20513000000
1988-01-01	20798000000
1988-04-01	20691000000
1988-07-01	21003000000
1988-10-01	22014000000
1989-01-01	21658000000
1989-04-01	22068000000
1989-07-01	21518000000
1989-10-01	21288000000
1990-01-01	21562000000
1990-04-01	21352000000
1990-07-01	21246000000
1990-10-01	21166000000
1991-01-01	20812000000
1991-04-01	20609000000
1991-07-01	20580000000
1991-10-01	20364000000
1992-01-01	20187000000
1992-04-01	20215000000
1992-07-01	20210000000
1992-10-01	20713000000
1993-01-01	20954000000
1993-04-01	21207000000
1993-07-01	21019000000
1993-10-01	21661000000
1994-01-01	21908000000
1994-04-01	22202000000
1994-07-01	22401000000
1994-10-01	22230000000
1995-01-01	21928000000
1995-04-01	22074000000
1995-07-01	22278000000
1995-10-01	22678000000
1996-01-01	23133000000
1996-04-01	22607000000
1996-07-01	22961000000
1996-10-01	23118000000
1997-01-01	22883000000
1997-04-01	23208000000
1997-07-01	23587000000
1997-10-01	23682000000
1998-01-01	23754000000
1998-04-01	24099000000
1998-07-01	24241000000
1998-10-01	24554000000
1999-01-01	24732000000
1999-04-01	24093000000
1999-07-01	24174000000
1999-10-01	24311000000
2000-01-01	25432000000
2000-04-01	24996000000
2000-07-01	25404000000
2000-10-01	25486000000
2001-01-01	24883000000
2001-04-01	25239000000
2001-07-01	25331000000
2001-10-01	25887000000
2002-01-01	26160000000
2002-04-01	26408000000
2002-07-01	26425000000
2002-10-01	26845000000
2003-01-01	27431000000
2003-04-01	27086000000
2003-07-01	26936000000
2003-10-01	27215000000
2004-01-01	27626000000
2004-04-01	27382000000
2004-07-01	27073000000
2004-10-01	26953000000
2005-01-01	27049000000
2005-04-01	27010000000
2005-07-01	27165000000
2005-10-01	26624000000
2006-01-01	26643000000
2006-04-01	26959000000
2006-07-01	26994000000
2006-10-01	27715000000
2007-01-01	27603000000
2007-04-01	27299000000
2007-07-01	27766000000
2007-10-01	27971000000
2008-01-01	28915000000
2008-04-01	29320000000
2008-07-01	28705000000
2008-10-01	27168000000
2009-01-01	26012000000
2009-04-01	26246000000
2009-07-01	26181000000
2009-10-01	27336000000
2010-01-01	27655000000
2010-04-01	27388000000
2010-07-01	27158000000
2010-10-01	27049000000
2011-01-01	26646000000
2011-04-01	27429000000
2011-07-01	27750000000
2011-10-01	27476000000
2012-01-01	27572000000
2012-04-01	26469000000
2012-07-01	26761000000
2012-10-01	26578000000
2013-01-01	26405000000
2013-04-01	26005000000
2013-07-01	26183000000
2013-10-01	26440000000
2014-01-01	25818000000
2014-04-01	26172000000
2014-07-01	25817000000
2014-10-01	25833000000
2015-01-01	25819000000
2015-04-01	25662000000
2015-07-01	25513000000
2015-10-01	25171000000
2016-01-01	25003000000
2016-04-01	25009000000
2016-07-01	24814000000
2016-10-01	24705000000
2017-01-01	24428000000
2017-04-01	25043000000
2017-07-01	25484000000
2017-10-01	25335000000
2018-01-01	25921000000
2018-04-01	25521000000