Quarter	US Dollars, Monthly Level
1960-01-01	82000000.00000000
1960-04-01	96000000.00000000
1960-07-01	82000000.00000000
1960-10-01	84000000.00000000
1961-01-01	75000000.00000000
1961-04-01	100000000
1961-07-01	67000000.00000001
1961-10-01	75000000.00000000
1962-01-01	95000000.00000000
1962-04-01	98000000.00000000
1962-07-01	111000000.00000000
1962-10-01	120000000
1963-01-01	119000000.00000000
1963-04-01	158000000.00000000
1963-07-01	150000000
1963-10-01	136000000.00000000
1964-01-01	100000000
1964-04-01	101000000.00000000
1964-07-01	96000000.00000000
1964-10-01	108000000.00000000
1965-01-01	85000000.00000000
1965-04-01	110000000
1965-07-01	124000000.00000000
1965-10-01	146000000.00000000
1966-01-01	130000000
1966-04-01	171000000.00000000
1966-07-01	159000000.00000000
1966-10-01	257000000.00000000
1967-01-01	199000000.00000000
1967-04-01	212000000.00000000
1967-07-01	243000000.00000000
1967-10-01	342000000.00000000
1968-01-01	292000000.00000000
1968-04-01	355000000.00000000
1968-07-01	350000000
1968-10-01	467000000.00000000
1969-01-01	345000000.00000000
1969-04-01	442000000.00000000
1969-07-01	524000000.00000000
1969-10-01	514000000.00000000
1970-01-01	423000000.00000000
1970-04-01	451000000.00000000
1970-07-01	466000000.00000000
1970-10-01	644000000.00000000
1971-01-01	510000000
1971-04-01	660000000
1971-07-01	639000000.00000000
1971-10-01	586000000.00000000
1972-01-01	509000000.00000000
1972-04-01	660000000
1972-07-01	647000000.00000000
1972-10-01	707000000.00000000
1973-01-01	770000000
1973-04-01	1120000000.00000000
1973-07-01	1098000000.00000000
1973-10-01	1231000000.00000000
1974-01-01	1434000000.00000000
1974-04-01	1842000000.00000000
1974-07-01	1802000000.00000000
1974-10-01	1774000000.00000000
1975-01-01	1881000000.00000000
1975-04-01	1960000000.00000000
1975-07-01	1488000000.00000000
1975-10-01	1947000000.00000000
1976-01-01	1804000000.00000000
1976-04-01	2201000000.00000000
1976-07-01	2474000000.00000000
1976-10-01	2295000000.00000000
1977-01-01	2287000000.00000000
1977-04-01	2898000000.00000000
1977-07-01	2622000000.00000000
1977-10-01	3005000000.00000000
1978-01-01	2959000000.00000000
1978-04-01	3501000000.00000000
1978-07-01	3842000000.00000000
1978-10-01	4670000000.00000000
1979-01-01	4293000000.00000000
1979-04-01	5355000000.00000000
1979-07-01	5195000000.00000000
1979-10-01	5496000000.00000000
1980-01-01	5339000000.00000000
1980-04-01	5525000000.00000000
1980-07-01	5419000000.00000000
1980-10-01	6010000000.00000000
1981-01-01	6027000000.00000000
1981-04-01	6745000000.00000000
1981-07-01	6518000000.00000000
1981-10-01	6841000000.00000000
1982-01-01	5737000000.00000000
1982-04-01	6093000000.00000000
1982-07-01	6088000000.00000000
1982-10-01	6333000000.00000000
1983-01-01	6046000000.00000000
1983-04-01	6117000000.00000000
1983-07-01	6241000000.00000000
1983-10-01	7788000000.00000000
1984-01-01	7227000000.00000000
1984-04-01	8262000000.00000000
1984-07-01	7754000000.00000000
1984-10-01	7391000000.00000000
1985-01-01	6721000000.00000000
1985-04-01	7699000000.00000000
1985-07-01	7288000000.00000000
1985-10-01	9421000000.00000000
1986-01-01	7912000000.00000000
1986-04-01	7814000000.00000000
1986-07-01	7786000000.00000000
1986-10-01	8436999999.99999900
1987-01-01	8183999999.99999900
1987-04-01	10519000000.00000000
1987-07-01	10784000000.00000000
1987-10-01	11529000000.00000000
1988-01-01	11520000000.00000000
1988-04-01	12720000000.00000000
1988-07-01	13640000000.00000000
1988-10-01	13940000000.00000000
1989-01-01	14010000000.00000000
1989-04-01	15130000000.00000000
1989-07-01	15870000000.00000000
1989-10-01	16440000000.00000200
1990-01-01	15818311000.00000000
1990-04-01	16703320999.99999800
1990-07-01	17173155000.00000200
1990-10-01	20148891000.00000000
1991-01-01	19567212000.00000000
1991-04-01	20600315000.00000000
1991-07-01	20097879000.00000000
1991-10-01	21259450000.00000000
1992-01-01	20898657000.00000000
1992-04-01	21004854000.00000000
1992-07-01	19360040000.00000000
1992-10-01	20511706000.00000000
1993-01-01	19964828000.00000000
1993-04-01	21332831000.00000000
1993-07-01	20783902000.00000000
1993-10-01	21718584000.00000000
1994-01-01	22551999000.00000000
1994-04-01	24810653000.00000000
1994-07-01	25715890000.00000000
1994-10-01	29269634000.00000000
1995-01-01	30522760000.00000000
1995-04-01	34741657000.00000000
1995-07-01	34440888000.00000000
1995-10-01	35413627000.00000000
1996-01-01	35665265000.00000000
1996-04-01	37079709000.00000000
1996-07-01	37091561000.00000000
1996-10-01	40502566000.00000000
1997-01-01	37050288000.00000000
1997-04-01	37361625000.00000000
1997-07-01	35687709000.00000000
1997-10-01	34516754000.00000000
1998-01-01	23654719000.00000000
1998-04-01	23541165000.00000000
1998-07-01	21462097000.00000000
1998-10-01	24623774000.00000000
1999-01-01	25566681000.00000000
1999-04-01	28760278000.00000000
1999-07-01	29758706000.00000000
1999-10-01	35666618000.00000000
2000-01-01	38830286000.00000000
2000-04-01	39805399000.00000000
2000-07-01	40404818000.00000000
2000-10-01	41440515000.00000000
2001-01-01	38115167000.00000000
2001-04-01	34485992000.00000000
2001-07-01	34155049000.00000000
2001-10-01	34341613000.00000400
2002-01-01	33787688000.00000400
2002-04-01	37192018000.00000000
2002-07-01	38884081000.00000000
2002-10-01	42262366000.00000000
2003-01-01	44223458000.00000000
2003-04-01	41710530000.00000000
2003-07-01	42970807000.00000000
2003-10-01	49921863000.00000000
2004-01-01	52797521000.00000000
2004-04-01	55269686000.00000000
2004-07-01	54707802000.00000000
2004-10-01	61687678000.00000000
2005-01-01	60626777000.00000000
2005-04-01	63694865000.00000000
2005-07-01	66228308999.99999000
2005-10-01	70688313000.00000000
2006-01-01	72542091000.00000000
2006-04-01	76719650000.00000000
2006-07-01	80215820000.00000000
2006-10-01	79905071000.00000000
2007-01-01	82261713000.00000000
2007-04-01	87961917000.00000000
2007-07-01	86058833000.00000000
2007-10-01	100563271000.00000000
2008-01-01	106052925000.00000000
2008-04-01	114792800000.00000000
2008-07-01	122901011000.00000000
2008-10-01	91528000000.00000000
2009-01-01	71417537000.00000000
2009-04-01	73970171000.00000000
2009-07-01	84845095000.00000000
2009-10-01	92851719000.00000000
2010-01-01	98155875000.00000000
2010-04-01	105630710000.00000000
2010-07-01	105698462000.00000000
2010-10-01	115727113000.00000000
2011-01-01	123948863000.00000000
2011-04-01	134298226000.00000000
2011-07-01	134957278000.00000000
2011-10-01	131208722000.00000000
2012-01-01	133670681000.00000000
2012-04-01	130431143999.99998000
2012-07-01	125652110000.00000000
2012-10-01	129830538999.99998000
2013-01-01	129732153000.00002000
2013-04-01	126757509000.00000000
2013-07-01	126033629000.00000000
2013-10-01	133062222999.99998000
2014-01-01	132366242000.00000000
2014-04-01	130957197000.00002000
2014-07-01	132840497000.00000000
2014-10-01	129350571000.00000000
2015-01-01	111767276000.00000000
2015-04-01	110496996000.00000000
2015-07-01	107959734000.00000000
2015-10-01	106274968000.00000000
2016-01-01	93829647000.00000000
2016-04-01	99304458000.00000000
2016-07-01	102463856000.00000000
2016-10-01	110594927000.00000000
2017-01-01	116428177000.00000000
2017-04-01	117798167000.00000000
2017-07-01	120852813000.00000000
2017-10-01	123399140000.00000000
2018-01-01	132374258000.00000000
2018-04-01	132994972999.99998000
2018-07-01	130323856000.00000000