Quarter	US Dollars, Monthly Level
1991-01-01	11208494184.983100
1991-04-01	19247865992.873100
1991-07-01	17909388297.436203
1991-10-01	17245046633.660200
1992-01-01	10500464485.509800
1992-04-01	13659792494.717900
1992-07-01	13480916407.555700
1992-10-01	16989233209.296501
1993-01-01	11126530790.577400
1993-04-01	13782222093.279900
1993-07-01	14370657405.947498
1993-10-01	17808093913.783900
1994-01-01	13307600000.000000
1994-04-01	16902000000.000002
1994-07-01	18429400000.000000
1994-10-01	18902800000.000000
1995-01-01	18553800000.000000
1995-04-01	20618600000.000000
1995-07-01	19382300000.000000
1995-10-01	22541400000.000000
1996-01-01	20390000000.000000
1996-04-01	21422000000.000000
1996-07-01	21420000000.000000
1996-10-01	25367000000.000000
1997-01-01	20130000000.000000
1997-04-01	19988000000.000000
1997-07-01	21290000000.000000
1997-10-01	24537000000.000000
1998-01-01	17810000000.000000
1998-04-01	18367000000.000000
1998-07-01	18999000000.000000
1998-10-01	18566000000.000000
1999-01-01	14057000000.000000
1999-04-01	15681000000.000000
1999-07-01	17320000000.000000
1999-10-01	22598000000.000000
2000-01-01	22770000000.000000
2000-04-01	23926000000.000000
2000-07-01	25069000000.000000
2000-10-01	27455000000.000000
2001-01-01	24244000000.000000
2001-04-01	24843000000.000000
2001-07-01	24254000000.000000
2001-10-01	23214000000.000000
2002-01-01	20765000000.000000
2002-04-01	24885000000.000000
2002-07-01	27592000000.000000
2002-10-01	28826000000.000000
2003-01-01	29657000000.000000
2003-04-01	29743000000.000000
2003-07-01	33320999999.999996
2003-10-01	36339000000.000000
2004-01-01	36035000000.000000
2004-04-01	41699000000.000000
2004-07-01	47353000000.000000
2004-10-01	52773000000.000000
2005-01-01	49091000000.000000
2005-04-01	58693000000.000000
2005-07-01	63971000000.000000
2005-10-01	68269999999.999990
2006-01-01	66412000000.000010
2006-04-01	75559000000.000000
2006-07-01	78727000000.000000
2006-10-01	76785000000.000000
2007-01-01	70177000000.000000
2007-04-01	81869000000.000000
2007-07-01	87081000000.000000
2007-10-01	107403000000.000000
2008-01-01	108372000000.000000
2008-04-01	126027000000.000000
2008-07-01	134472000000.000020
2008-10-01	97428000000.000000
2009-01-01	57754000000.000000
2009-04-01	63568000000.000000
2009-07-01	81584000000.000000
2009-10-01	94249000000.000000
2010-01-01	90063000000.000000
2010-04-01	95353000000.000000
2010-07-01	95656000000.000000
2010-10-01	111602000000.000000
2011-01-01	111674000000.000000
2011-04-01	133497999999.999980
2011-07-01	128314000000.000000
2011-10-01	141922000000.000000
2012-01-01	131032000000.000020
2012-04-01	131186000000.000000
2012-07-01	125204000000.000000
2012-10-01	140011000000.000000
2013-01-01	124833000000.000000
2013-04-01	126919000000.000000
2013-07-01	130658999999.999980
2013-10-01	139425000000.000000
2014-01-01	122812000000.000000
2014-04-01	132067000000.000000
2014-07-01	125652000000.000000
2014-10-01	116276000000.000000
2015-01-01	90207000000.000000
2015-04-01	91457000000.000000
2015-07-01	78699000000.000000
2015-10-01	81056000000.000000
2016-01-01	60469000000.000000
2016-04-01	67830000000.000000
2016-07-01	70919000000.000000
2016-10-01	82492000000.000000
2017-01-01	82550000000.000000
2017-04-01	83882000000.000000
2017-07-01	84560000000.000000
2017-10-01	102556000000.000000
2018-01-01	101478000000.000000
2018-04-01	108928000000.000000
2018-07-01	110303000000.000000