Quarter	US Dollars, monthly level
1960-01-01	-476537997.42158700
1960-04-01	-569658048.02419500
1960-07-01	-741927700.15754390
1960-10-01	-643695555.31431600
1961-01-01	-532284040.24765795
1961-04-01	-424682328.30447200
1961-07-01	-383659094.75474805
1961-10-01	-315074417.62378204
1962-01-01	-464205276.48698300
1962-04-01	-289587740.64312900
1962-07-01	-496301776.00482600
1962-10-01	-339086342.59256400
1963-01-01	-313928415.16514605
1963-04-01	-355663496.36757700
1963-07-01	-551580196.06498300
1963-10-01	-495204697.89845103
1964-01-01	-738715994.26620800
1964-04-01	-741443103.07315800
1964-07-01	-877998764.12918000
1964-10-01	-718976244.70894610
1965-01-01	-622846240.29434690
1965-04-01	-581415164.88406990
1965-07-01	-647960071.80682210
1965-10-01	-462604997.90081400
1966-01-01	-605000418.08432600
1966-04-01	-667303747.85285500
1966-07-01	-674946067.06812390
1966-10-01	58608898.26338840
1967-01-01	-636970855.66783390
1967-04-01	-617870941.24277700
1967-07-01	-799447855.44197200
1967-10-01	-1194325916.29584000
1968-01-01	-1034633871.58536000
1968-04-01	-918506785.11336210
1968-07-01	-879360206.82613200
1968-10-01	-661235312.17089010
1969-01-01	-917797637.81114900
1969-04-01	-571185425.56646000
1969-07-01	-453466064.28233700
1969-10-01	-366388478.83000100
1970-01-01	-673035386.87060500
1970-04-01	-927440135.24104690
1970-07-01	-1007749217.35671000
1970-10-01	-604543269.31250800
1971-01-01	-1243236121.57543000
1971-04-01	-505494360.90792197
1971-07-01	-378237899.43791500
1971-10-01	-360465255.50930500
1972-01-01	-1216257506.17774000
1972-04-01	-787566056.12824200
1972-07-01	-1454573071.80291990
1972-10-01	-914914121.48029100
1973-01-01	-2148970676.14128000
1973-04-01	-2016688397.65303000
1973-07-01	-2681513524.10039000
1973-10-01	-3097731098.58964970
1974-01-01	-4252521237.25423000
1974-04-01	-4850030955.76462000
1974-07-01	-4099962892.28927000
1974-10-01	-3956225889.03688000
1975-01-01	-3375173946.79546000
1975-04-01	-2548833105.17260030
1975-07-01	-3048402290.03968000
1975-10-01	-2224688206.38605980
1976-01-01	-2468073187.09018040
1976-04-01	-3244445461.45333960
1976-07-01	-3197498262.23368020
1976-10-01	-2974867264.82017000
1977-01-01	-2998703770.66821960
1977-04-01	-2924133457.83204030
1977-07-01	-1325645622.88514020
1977-10-01	-1506782561.35883000
1978-01-01	-2436210307.75469970
1978-04-01	-2523681569.64901970
1978-07-01	-2283206256.08427000
1978-10-01	-1915776240.57785000
1979-01-01	-4981895032.14470000
1979-04-01	-3212061480.40926030
1979-07-01	-2974049739.63447000
1979-10-01	-3334903786.41924000
1980-01-01	-3604596836.88231000
1980-04-01	-2855804700.78445000
1980-07-01	-183386481.52381000
1980-10-01	1371874983.20086000
1981-01-01	1447942425.78298000
1981-04-01	284564989.99921800
1981-07-01	-1927947789.16365000
1981-10-01	-412257130.94683200
1982-01-01	-1694092338.36425020
1982-04-01	-2027038634.15731000
1982-07-01	-667465988.33934200
1982-10-01	1014938578.35964010
1983-01-01	-2044947545.94688000
1983-04-01	-2914414225.48508000
1983-07-01	-1834303347.85316010
1983-10-01	-838969103.63942100
1984-01-01	-2327094963.16233000
1984-04-01	-3876738248.33437000
1984-07-01	-3244301448.15278000
1984-10-01	-1815554408.42776000
1985-01-01	-3302376137.57002000
1985-04-01	-2032489284.27419000
1985-07-01	-2152761388.03890000
1985-10-01	-729623131.93790400
1986-01-01	-4121510619.46247050
1986-04-01	-4709230931.06978000
1986-07-01	-6030894165.07257900
1986-10-01	-4062528731.28716000
1987-01-01	-4392376503.41286000
1987-04-01	-6274787631.50339000
1987-07-01	-6898284886.70405000
1987-10-01	-5870700803.13419000
1988-01-01	-9988468148.43851000
1988-04-01	-10676333559.14910000
1988-07-01	-10764280215.25689900
1988-10-01	-12130522777.99110000
1989-01-01	-12699880789.63800000
1989-04-01	-13167177037.70440100
1989-07-01	-13155352796.83640100
1989-10-01	-7107069852.55570000
1990-01-01	-12060308304.19670100
1990-04-01	-11393157741.30280000
1990-07-01	-11059319288.88099900
1990-10-01	-4606190578.82926000
1991-01-01	-8800772450.87159000
1991-04-01	-6100682205.11230100
1991-07-01	-6984006318.45909000
1991-10-01	-3041619361.39866970
1992-01-01	-8048372614.55988100
1992-04-01	-8199893483.61740000
1992-07-01	-9862969394.33757000
1992-10-01	-4863091524.48944000
1993-01-01	-5582826973.41815000
1993-04-01	-7911432087.73703000
1993-07-01	-7599693646.97283000
1993-10-01	-4542782644.03029100
1994-01-01	-6470536215.46964100
1994-04-01	-6969250334.68694000
1994-07-01	-5036389201.66989000
1994-10-01	-3916226307.33140000
1995-01-01	-2683828976.89525030
1995-04-01	-8283904696.08183000
1995-07-01	-7943161707.23937000
1995-10-01	-4219516889.10465960
1996-01-01	-6047419087.55927000
1996-04-01	-9005120275.03988800
1996-07-01	-7149098850.41337000
1996-10-01	-3483379325.71139000
1997-01-01	-5017765072.27101000
1997-04-01	-8612777455.31457000
1997-07-01	-6859790409.58580000
1997-10-01	-5750199162.18203900
1998-01-01	-9228304556.63416100
1998-04-01	-11868301929.94570000
1998-07-01	-12119752688.32350000
1998-10-01	-10748084374.68530000
1999-01-01	-14083512648.21550000
1999-04-01	-12032306361.88749900
1999-07-01	-12679686366.54980000
1999-10-01	-11455274082.76390000
2000-01-01	-12753767481.69590000
2000-04-01	-13105768693.84560000
2000-07-01	-14306616241.95390100
2000-10-01	-12162064182.98040000
2001-01-01	-12801814451.37880000
2001-04-01	-14554843532.39820100
2001-07-01	-14328861194.38250000
2001-10-01	-12354826617.01500000
2002-01-01	-13194642524.14540100
2002-04-01	-12330182776.40990000
2002-07-01	-16379131885.48950000
2002-10-01	-17729784714.52520000
2003-01-01	-18391350072.88050000
2003-04-01	-18428846685.69370000
2003-07-01	-18226710667.37340000
2003-10-01	-21594165533.34060000
2004-01-01	-27145439698.18610000
2004-04-01	-27649935410.99480000
2004-07-01	-28681868153.86459700
2004-10-01	-27814375048.34560000
2005-01-01	-30190169769.68140000
2005-04-01	-27110858531.55589700
2005-07-01	-27772727089.14500000
2005-10-01	-22870546269.92600000
2006-01-01	-19569344424.66910000
2006-04-01	-14509479005.14830000
2006-07-01	-37239184367.09290000
2006-10-01	-38273213051.32250000
2007-01-01	-43695671609.57370000
2007-04-01	-41966325557.72110000
2007-07-01	-50131566930.34810000
2007-10-01	-47555287553.34660000
2008-01-01	-47108693283.97390000
2008-04-01	-47558723610.57560000
2008-07-01	-44816937278.74690000
2008-10-01	-34128707858.10490400
2009-01-01	-31198685728.81420000
2009-04-01	-31654036164.72369800
2009-07-01	-33856125682.51679600
2009-10-01	-33889071679.72590300
2010-01-01	-35942328158.55981000
2010-04-01	-34687695911.69350400
2010-07-01	-40901561216.10520000
2010-10-01	-42327505901.86940000
2011-01-01	-37436017936.45230000
2011-04-01	-39994646460.48680000
2011-07-01	-45496760170.43390000
2011-10-01	-39244739957.27560000
2012-01-01	-40879621684.66850000
2012-04-01	-43878035363.45779400
2012-07-01	-42262527115.85940000
2012-10-01	-43923376552.58470000
2013-01-01	-41680605546.92540000
2013-04-01	-40283132994.61211000
2013-07-01	-48808980351.26140000
2013-10-01	-45413716446.92770400
2014-01-01	-46893590767.92271000
2014-04-01	-48404054271.18320000
2014-07-01	-55017749511.19860000
2014-10-01	-49032725613.17160000
2015-01-01	-48238535927.30090000
2015-04-01	-39202169201.18070000
2015-07-01	-47765860378.59890000
2015-10-01	-47273539861.20690000
2016-01-01	-45342334610.75650000
2016-04-01	-43485040469.20920600
2016-07-01	-49375676147.56670000
2016-10-01	-43428281713.50560000
2017-01-01	-44332858792.35540000
2017-04-01	-42223936570.88110000
2017-07-01	-48029014513.04740000
2017-10-01	-46207027605.78330000
2018-01-01	-46968826666.50910000
2018-04-01	-45980571475.11269000
2018-07-01	-47332279595.79670000