Quarter	Percent
1977-04-01	3260000000.0000000
1977-07-01	3004000000.0000000
1977-10-01	2924000000.0000000
1978-01-01	2807000000.0000000
1978-04-01	2925000000.0000000
1978-07-01	2878000000.0000000
1978-10-01	3142000000.0000000
1979-01-01	3058000000.0000000
1979-04-01	3139000000.0000000
1979-07-01	3078000000.0000000
1979-10-01	3215000000.0000000
1980-01-01	3096000000.0000000
1980-04-01	3132000000.0000000
1980-07-01	3009000000.0000000
1980-10-01	3227000000.0000000
1981-01-01	3036000000.0000000
1981-04-01	3331000000.0000000
1981-07-01	3289000000.0000000
1981-10-01	3458000000.0000000
1982-01-01	3330000000.0000000
1982-04-01	3551000000.0000000
1982-07-01	3423000000.0000000
1982-10-01	3388000000.0000000
1983-01-01	3207000000.0000000
1983-04-01	3320000000.0000000
1983-07-01	3384000000.0000000
1983-10-01	3568000000.0000000
1984-01-01	3701000000.0000000
1984-04-01	3778000000.0000000
1984-07-01	3750000000.0000000
1984-10-01	3984000000.0000000
1985-01-01	3769000000.0000000
1985-04-01	3800000000.0000000
1985-07-01	3706000000.0000000
1985-10-01	3733000000.0000000
1986-01-01	3367000000.0000000
1986-04-01	3750000000.0000000
1986-07-01	3704000000.0000000
1986-10-01	3807000000.0000000
1987-01-01	3683000000.0000000
1987-04-01	4600921371.0000000
1987-07-01	4354817544.0000000
1987-10-01	4552326955.0000000
1988-01-01	4358954166.0000000
1988-04-01	4480731841.0000000
1988-07-01	4292301673.0000000
1988-10-01	4534468918.0000000
1989-01-01	4415841965.0000000
1989-04-01	4469112190.0000000
1989-07-01	4231153965.0000005
1989-10-01	4599511848.0000000
1990-01-01	4278088931.0000000
1990-04-01	4259535364.0000005
1990-07-01	4111973925.0000000
1990-10-01	4494288583.0000000
1991-01-01	4056046979.0000000
1991-04-01	3906250981.0000000
1991-07-01	3952019040.0000000
1991-10-01	4441817516.0000000
1992-01-01	4202428536.0000005
1992-04-01	4220277723.9999995
1992-07-01	4066160820.0000000
1992-10-01	4560638391.0000000
1993-01-01	4396110140.0000000
1993-04-01	4428899569.0000000
1993-07-01	4446439794.0000000
1993-10-01	4883539473.0000000
1994-01-01	4624332470.0000000
1994-04-01	4668103945.0000000
1994-07-01	4731348207.0000000
1994-10-01	5289352337.0000000
1995-01-01	4958122328.0000000
1995-04-01	4837295675.0000000
1995-07-01	4701699273.0000000
1995-10-01	5262075241.0000000
1996-01-01	4957326517.0000000
1996-04-01	4953729515.0000000
1996-07-01	4847005047.0000000
1996-10-01	5371134498.0000000
1997-01-01	4899545894.0000000
1997-04-01	5002952168.0000000
1997-07-01	4808889398.0000000
1997-10-01	5363116902.0000000
1998-01-01	4938443151.0000000
1998-04-01	4748545330.0000000
1998-07-01	4704697646.0000000
1998-10-01	5204116430.0000000
1999-01-01	4903585839.0000000
1999-04-01	4729099462.0000000
1999-07-01	4864953653.0000000
1999-10-01	5652052735.0000000
2000-01-01	5174263552.0000000
2000-04-01	5033747452.0000000
2000-07-01	5090709339.0000000
2000-10-01	5724598384.0000000
2001-01-01	5102718926.0000000
2001-04-01	5184573574.0000000
2001-07-01	5164035783.0000000
2001-10-01	5706088975.0000000
2002-01-01	5168723030.0000000
2002-04-01	5363906223.0000000
2002-07-01	5626807352.0000000
2002-10-01	6323809461.0000000
2003-01-01	5761122581.0000000
2003-04-01	5619056615.0000000
2003-07-01	5729410213.0000000
2003-10-01	6372343888.0000000
2004-01-01	5953520124.0000000
2004-04-01	5961882388.0000000
2004-07-01	5954887754.0000000
2004-10-01	6510887656.0000000
2005-01-01	5932327906.0000000
2005-04-01	6047723002.0000000
2005-07-01	6072128212.0000000
2005-10-01	6465757573.0000000
2006-01-01	6000473418.0000000
2006-04-01	5862864497.0000000
2006-07-01	5704218213.0000000
2006-10-01	6350540333.0000000
2007-01-01	5842307850.0000000
2007-04-01	5826571699.0000000
2007-07-01	5869222954.0000000
2007-10-01	6480490705.0000000
2008-01-01	5849615026.0000000
2008-04-01	5796468322.0000000
2008-07-01	5448696560.0000000
2008-10-01	5658293134.0000000
2009-01-01	5061010762.0000000
2009-04-01	4742995454.0000000
2009-07-01	4818058617.0000000
2009-10-01	5947117012.0000000
2010-01-01	5417625794.0000000
2010-04-01	5299228587.0000000
2010-07-01	5118379564.0000000
2010-10-01	5614913774.0000000
2011-01-01	5322899221.0000000
2011-04-01	5271238694.0000000
2011-07-01	5201437810.0000000
2011-10-01	5499135931.0000000
2012-01-01	5338424797.0000000
2012-04-01	5193281720.0000000
2012-07-01	5124061392.0000000
2012-10-01	5920885918.0000000
2013-01-01	5387746339.0000000
2013-04-01	5260906186.0000000
2013-07-01	5253225328.0000000
2013-10-01	5872961046.0000000
2014-01-01	5446919460.0000000
2014-04-01	5280556425.0000000
2014-07-01	5308267076.0000000
2014-10-01	6021906694.0000000
2015-01-01	5537680387.0000000
2015-04-01	5191369590.0000000
2015-07-01	5419426280.0000000
2015-10-01	6343586094.0000000
2016-01-01	5729409755.0000000
2016-04-01	5409100897.0000000
2016-07-01	5586820453.0000000
2016-10-01	6363589764.0000000
2017-01-01	5833889351.0000000
2017-04-01	5561584356.0000000
2017-07-01	5698389255.0000000
2017-10-01	6495073564.0000000
2018-01-01	5948953659.0000000
2018-04-01	5652669359.0000000
