Quarter	National Currency
1980-01-01	19777115921
1980-04-01	19492428282
1980-07-01	16757032650
1980-10-01	20104527285
1981-01-01	19226743036
1981-04-01	19568663696
1981-07-01	16754754175
1981-10-01	19779653209
1982-01-01	18944113031
1982-04-01	19151706313
1982-07-01	16574927211
1982-10-01	19286333508
1983-01-01	19309055066
1983-04-01	19696819951
1983-07-01	16613423442
1983-10-01	19653726784
1984-01-01	19553426054
1984-04-01	19355059622
1984-07-01	16718629597
1984-10-01	19673199378
1985-01-01	19328516750
1985-04-01	19338069515
1985-07-01	16944313689
1985-10-01	20437278979
1986-01-01	19308722063
1986-04-01	20606839134
1986-07-01	17433420793
1986-10-01	20966523885
1987-01-01	20471734289
1987-04-01	21466097707
1987-07-01	19078243064
1987-10-01	22302809098
1988-01-01	21979878409
1988-04-01	22828237845
1988-07-01	19637260128
1988-10-01	22871694197
1989-01-01	22814894529
1989-04-01	24053902629
1989-07-01	20525601282
1989-10-01	23651615887
1990-01-01	24019761615
1990-04-01	24164729492
1990-07-01	20798344041
1990-10-01	23993904738
1991-01-01	23443242432
1991-04-01	24604483514
1991-07-01	21310124246
1991-10-01	25234057460
1992-01-01	24511015031
1992-04-01	24877861982
1992-07-01	21637204774
1992-10-01	23566210221
1993-01-01	22783695832
1993-04-01	23546746023
1993-07-01	20879603192
1993-10-01	23376757741
1994-01-01	22974350761
1994-04-01	24142924780
1994-07-01	21080328889
1994-10-01	24564471597
1995-01-01	24956997272
1995-04-01	24784546946
1995-07-01	21793005344
1995-10-01	24554912353
1996-01-01	24891953811
1996-04-01	24994674896
1996-07-01	22823571790
1996-10-01	25746071591
1997-01-01	25864839451
1997-04-01	27011544761
1997-07-01	24501418404
1997-10-01	27617461262
1998-01-01	28146103213
1998-04-01	27875993006
1998-07-01	26222736408
1998-10-01	28699083397
1999-01-01	29164086904
1999-04-01	29452656611
1999-07-01	27928061324
1999-10-01	30417149563
2000-01-01	31587724599
2000-04-01	30869528974
2000-07-01	28544610362
2000-10-01	30904554927
2001-01-01	32515671512
2001-04-01	31583463304
2001-07-01	29791669445
2001-10-01	31817580514
2002-01-01	31312987140
2002-04-01	31666741322
2002-07-01	30004948208
2002-10-01	32208942801
2003-01-01	32192264519
2003-04-01	31567340131
2003-07-01	30323486014
2003-10-01	32665776569
2004-01-01	32413735320
2004-04-01	31835776815
2004-07-01	30583614913
2004-10-01	32559977455
2005-01-01	32120705890
2005-04-01	32571473050
2005-07-01	30802275992
2005-10-01	33258545069
2006-01-01	32962805453
2006-04-01	32902297750
2006-07-01	31325975987
2006-10-01	33954920810
2007-01-01	33631104147
2007-04-01	33134568954
2007-07-01	31431140428
2007-10-01	33850878576
2008-01-01	33006057413
2008-04-01	33209068372
2008-07-01	30731326683
2008-10-01	31614421708
2009-01-01	29022970823
2009-04-01	27329853939
2009-07-01	26198536901
2009-10-01	28704835053
2010-01-01	28660793384
2010-04-01	28081828946
2010-07-01	26700851141
2010-10-01	29220791245
2011-01-01	29775271330
2011-04-01	29027417651