Quarter	National Currency
1983-10-01	347.625443786982
1984-01-01	350.935207100592
1984-04-01	365.277514792899
1984-07-01	368.486982248521
1984-10-01	380.321893491124
1985-01-01	383.631656804734
1985-04-01	390.351479289941
1985-07-01	396.369230769231
1985-10-01	410.310355029586
1986-01-01	413.519822485207
1986-04-01	420.540532544379
1986-07-01	432.074556213018
1986-10-01	445.815088757396
1987-01-01	444.410946745562
1987-04-01	454.139644970414
1987-07-01	460.658875739645
1987-10-01	472.192899408284
1988-01-01	479.414201183432
1988-04-01	485.833136094674
1988-07-01	494.157692307692
1988-10-01	512.311242603550
1989-01-01	517.426331360947
1989-04-01	529.361538461538
1989-07-01	538.488461538462
1989-10-01	550.223076923077
1990-01-01	550.022485207101
1990-04-01	561.857396449704
1990-07-01	566.872189349112
1990-10-01	581.715976331361
1991-01-01	588.235207100592
1991-04-01	577.904733727811
1991-07-01	584.323668639053
1991-10-01	598.565680473373
1992-01-01	604.884319526627
1992-04-01	599.769230769231
1992-07-01	597.763313609467
1992-10-01	601.674852071006
1993-01-01	611.503846153846
1993-04-01	611.704437869822
1993-07-01	617.722189349112
1993-10-01	624.843195266272
1994-01-01	628.353550295858
1994-04-01	636.176627218935
1994-07-01	645.600000000000
1994-10-01	655.200000000000
1995-01-01	666.400000000000
1995-04-01	672.000000000000
1995-07-01	679.900000000000
1995-10-01	693.700000000000
1996-01-01	697.000000000000
1996-04-01	702.300000000000
1996-07-01	701.600000000000
1996-10-01	712.700000000000
1997-01-01	714.300000000000
1997-04-01	714.200000000000
1997-07-01	725.700000000000
1997-10-01	731.900000000000
1998-01-01	739.800000000000
1998-04-01	744.400000000000
1998-07-01	753.100000000000
1998-10-01	759.200000000000
1999-01-01	755.800000000000
1999-04-01	764.300000000000
1999-07-01	762.500000000000
1999-10-01	778.300000000000
2000-01-01	783.500000000000
2000-04-01	794.000000000000
2000-07-01	811.500000000000
2000-10-01	810.700000000000
2001-01-01	813.000000000000
2001-04-01	832.100000000000
2001-07-01	845.800000000000
2001-10-01	857.700000000000
2002-01-01	869.300000000000
2002-04-01	877.500000000000
2002-07-01	891.300000000000
2002-10-01	906.500000000000
2003-01-01	912.200000000000
2003-04-01	935.900000000000
2003-07-01	946.700000000000
2003-10-01	962.600000000000
2004-01-01	967.100000000000
2004-04-01	962.900000000000
2004-07-01	978.100000000000
2004-10-01	998.400000000000
2005-01-01	1018.700000000000
2005-04-01	1032.300000000000
2005-07-01	1038.300000000000
2005-10-01	1046.900000000000
2006-01-01	1052.600000000000
2006-04-01	1051.100000000000
2006-07-01	1061.200000000000
2006-10-01	1068.500000000000
2007-01-01	1082.700000000000
2007-04-01	1102.400000000000
2007-07-01	1124.100000000000
2007-10-01	1131.400000000000
2008-01-01	1148.400000000000
2008-04-01	1154.600000000000
2008-07-01	1180.400000000000
2008-10-01	1194.100000000000
2009-01-01	1202.400000000000
2009-04-01	1214.800000000000
2009-07-01	1231.100000000000
2009-10-01	1256.200000000000
2010-01-01	1267.100000000000
2010-04-01	1277.200000000000
2010-07-01	1283.800000000000
2010-10-01	1302.700000000000
2011-01-01	1316.700000000000
2011-04-01	1333.100000000000
2011-07-01	1353.400000000000
2011-10-01	1367.900000000000
2012-01-01	1385.700000000000
2012-04-01	1390.900000000000
2012-10-01	1436.700000000000
2013-04-01	1462.400000000000
2013-10-01	1478.000000000000
2014-04-01	1491.400000000000
2014-10-01	1521.400000000000
2015-04-01	1515.100000000000
2015-10-01	1531.000000000000
2016-04-01	1542.400000000000
2016-10-01	1560.800000000000
2017-04-01	1568.500000000000
2017-10-01	1594.800000000000
2018-04-01	1612.100000000000