Quarter	US Dollars, Monthly Level
1991-01-01	13787435760.690400
1991-04-01	20020131057.888100
1991-07-01	20897880946.378400
1991-10-01	21821058392.320400
1992-01-01	15636715911.955801
1992-04-01	15662527024.144300
1992-07-01	15496991757.975399
1992-10-01	16853451740.521698
1993-01-01	8932193483.952290
1993-04-01	12951671948.026800
1993-07-01	9979608416.561619
1993-10-01	14263908891.690100
1994-01-01	11545000000.000000
1994-04-01	12055000000.000000
1994-07-01	12314000000.000000
1994-10-01	14604400000.000000
1995-01-01	12977000000.000000
1995-04-01	14216100000.000000
1995-07-01	15282700000.000000
1995-10-01	18469200000.000000
1996-01-01	16614000000.000000
1996-04-01	17320000000.000000
1996-07-01	17169300000.000000
1996-10-01	17725000000.000000
1997-01-01	15165000000.000000
1997-04-01	17108000000.000000
1997-07-01	18392000000.000000
1997-10-01	21124000000.000000
1998-01-01	17764000000.000000
1998-04-01	17255000000.000000
1998-07-01	13309000000.000000
1998-10-01	9210000000.000000
1999-01-01	8557000000.000000
1999-04-01	9591000000.000000
1999-07-01	8919000000.000000
1999-10-01	10196000000.000000
2000-01-01	9348000000.000000
2000-04-01	9662000000.000000
2000-07-01	10418000000.000000
2000-10-01	12703000000.000000
2001-01-01	10634000000.000000
2001-04-01	13017000000.000000
2001-07-01	12605000000.000000
2001-10-01	15063000000.000000
2002-01-01	11783000000.000000
2002-04-01	14118000000.000000
2002-07-01	15123000000.000000
2002-10-01	17397000000.000000
2003-01-01	15376000000.000000
2003-04-01	17542000000.000000
2003-07-01	18755000000.000000
2003-10-01	21541000000.000000
2004-01-01	19203000000.000000
2004-04-01	22233000000.000000
2004-07-01	24155000000.000000
2004-10-01	28653000000.000000
2005-01-01	25300000000.000000
2005-04-01	28880000000.000000
2005-07-01	32085000000.000000
2005-10-01	37575000000.000000
2006-01-01	30744000000.000000
2006-04-01	38757000000.000000
2006-07-01	42061000000.000000
2006-10-01	51626000000.000000
2007-01-01	42612000000.000000
2007-04-01	52688000000.000000
2007-07-01	58020000000.000000
2007-10-01	69763000000.000000
2008-01-01	59773000000.000000
2008-04-01	74808000000.000000
2008-07-01	83046000000.000000
2008-10-01	71045000000.000000
2009-01-01	37720000000.000000
2009-04-01	41930000000.000000
2009-07-01	46842000000.000000
2009-10-01	57431000000.000000
2010-01-01	44817000000.000000
2010-04-01	57284000000.000000
2010-07-01	67625000000.000000
2010-10-01	75953000000.000000
2011-01-01	64691999999.999990
2011-04-01	82327000000.000000
2011-07-01	83124000000.000000
2011-10-01	88412000000.000000
2012-01-01	72242000000.000000
2012-04-01	81906000000.000000
2012-07-01	87023000000.000000
2012-10-01	94599000000.000000
2013-01-01	76566000000.000000
2013-04-01	84475000000.000000
2013-07-01	87306000000.000000
2013-10-01	92922000000.000000
2014-01-01	72438000000.000000
2014-04-01	80657000000.000000
2014-07-01	80468000000.000000
2014-10-01	74314000000.000000
2015-01-01	44656000000.000000
2015-04-01	47681000000.000000
2015-07-01	49826000000.000000
2015-10-01	50856000000.000000
2016-01-01	38057000000.000000
2016-04-01	45532000000.000000
2016-07-01	52552000000.000000
2016-10-01	55352000000.000000
2017-01-01	48089000000.000000
2017-04-01	58669000000.000000
2017-07-01	63821000000.000000
2017-10-01	67547000000.000000
2018-01-01	57427000000.000000
2018-04-01	63340000000.000000
2018-07-01	62619000000.000000