Quarter	National Currency
1981-01-01	15939170354
1981-04-01	17395874422
1981-07-01	16681413869
1981-10-01	17363853828
1982-01-01	16547091555
1982-04-01	17653798695
1982-07-01	16770683906
1982-10-01	17646478673
1983-01-01	16643831679
1983-04-01	17737317123
1983-07-01	16879925113
1983-10-01	17305100923
1984-01-01	16146851716
1984-04-01	16850723661
1984-07-01	15995977366
1984-10-01	16665441516
1985-01-01	15554823814
1985-04-01	16642500696
1985-07-01	15846964063
1985-10-01	16493832119
1986-01-01	15424739988
1986-04-01	16268452694
1986-07-01	15585183297
1986-10-01	16353506016
1987-01-01	15326121207
1987-04-01	16495296046
1987-07-01	15772419994
1987-10-01	16342852215
1988-01-01	15568146618
1988-04-01	16800267532
1988-07-01	16147446656
1988-10-01	16963490280
1989-01-01	16172843147
1989-04-01	17396855879
1989-07-01	16891861855
1989-10-01	17827009687
1990-01-01	16871676848
1990-04-01	17952805277
1990-07-01	17088723864
1990-10-01	17923338830
1991-01-01	17029757402
1991-04-01	18362017071
1991-07-01	17665992844
1991-10-01	18413299625
1992-01-01	17321573586
1992-04-01	18387450531
1992-07-01	17383604772
1992-10-01	17802167948
1993-01-01	16479643751
1993-04-01	17358395374
1993-07-01	16293652787
1993-10-01	16739556530
1994-01-01	15496202116
1994-04-01	16295424009
1994-07-01	15416311690
1994-10-01	15953767052
1995-01-01	15260910755
1995-04-01	16235713913
1995-07-01	15701913578
1995-10-01	16747449699
1996-01-01	15766227925
1996-04-01	16944689896
1996-07-01	16189804307
1996-10-01	16253197877
1997-01-01	15224910313
1997-04-01	16263418628
1997-07-01	15603975484
1997-10-01	16673427201
1998-01-01	15516075853
1998-04-01	16462404636
1998-07-01	15712209593
1998-10-01	16226713082
1999-01-01	15596099285
1999-04-01	16608105893
1999-07-01	15680927330
1999-10-01	16450702836
2000-01-01	16373529022
2000-04-01	17320278073
2000-07-01	16560913290
2000-10-01	17110403088
2001-01-01	17290963684
2001-04-01	18375316798
2001-07-01	17209023833
2001-10-01	18288474617
2002-01-01	17706619397
2002-04-01	18220127584
2002-07-01	17792154293
2002-10-01	19048112378
2003-01-01	18307488922
2003-04-01	19156943720
2003-07-01	18132375044
2003-10-01	18861202055
2004-01-01	18379457271
2004-04-01	19399952331
2004-07-01	18541547153
2004-10-01	19267974965
2005-01-01	18389463364
2005-04-01	19979137852
2005-07-01	19137647402
2005-10-01	19691836897
2006-01-01	19156229666
2006-04-01	20139968987
2006-07-01	19067417373
2006-10-01	20190014341
2007-01-01	19598323639
2007-04-01	20174160333
2007-07-01	19134938636
2007-10-01	20044958669
2008-01-01	19308972578
2008-04-01	19915713916
2008-07-01	18718998720
2008-10-01	18772114899
2009-01-01	17775637146
2009-04-01	18329008109
2009-07-01	17186509183
2009-10-01	17522949619
2010-01-01	16708382758
2010-04-01	17560396104
2010-07-01	16870206425
2010-10-01	17236604842
2011-01-01	16725018013
2011-04-01	17428014548