Quarter	National Currency
1974-07-01	24540679708
1974-10-01	24145081662
1975-01-01	22228707383
1975-04-01	22310864454
1975-07-01	22777725571
1975-10-01	23428719654
1976-01-01	22600633233
1976-04-01	23396548170
1976-07-01	24386021261
1976-10-01	24830461262
1977-01-01	22614022415
1977-04-01	24116450094
1977-07-01	24740772213
1977-10-01	24816821227
1978-01-01	22520803076
1978-04-01	24352650922
1978-07-01	25237653073
1978-10-01	25775975757
1979-01-01	23695534889
1979-04-01	25237544902
1979-07-01	26537425882
1979-10-01	26563382047
1980-01-01	24114144613
1980-04-01	25024404931
1980-07-01	26442985298
1980-10-01	27174485675
1981-01-01	24716011379
1981-04-01	25935708128
1981-07-01	26921486709
1981-10-01	27364924216
1982-01-01	24526124686
1982-04-01	26730792471
1982-07-01	27219133665
1982-10-01	25847896669
1983-01-01	23142277657
1983-04-01	25545158243
1983-07-01	26493482826
1983-10-01	26839914627
1984-01-01	25297949548
1984-04-01	27038196594
1984-07-01	28991600662
1984-10-01	28619598216
1985-01-01	26926415970
1985-04-01	29477330333
1985-07-01	30880449031
1985-10-01	30816935892
1986-01-01	28076328127
1986-04-01	28792978877
1986-07-01	30141714172
1986-10-01	29860372113
1987-01-01	27965578459
1987-04-01	30352986818
1987-07-01	32327213294
1987-10-01	33878774381
1988-01-01	31302456306
1988-04-01	32678063345
1988-07-01	34279136440
1988-10-01	35701995961
1989-01-01	32615891969
1989-04-01	34560892898
1989-07-01	35944082305
1989-10-01	35716581997
1990-01-01	34318257340
1990-04-01	35682013597
1990-07-01	37093540299
1990-10-01	36874125237
1991-01-01	33931545022
1991-04-01	35277908486
1991-07-01	36680592247
1991-10-01	36574537731
1992-01-01	33854152157
1992-04-01	35158765691
1992-07-01	36541861452
1992-10-01	36877662501
1993-01-01	34698005057
1993-04-01	36739534470
1993-07-01	37750353462
1993-10-01	38080642259
1994-01-01	36337838729
1994-04-01	37989280523
1994-07-01	40016040286
1994-10-01	39646747748
1995-01-01	36709941176
1995-04-01	38608735507
1995-07-01	40609833623
1995-10-01	40694038923
1996-01-01	39049576211
1996-04-01	40041702814
1996-07-01	41627451873
1996-10-01	41600144038
1997-01-01	38588383626
1997-04-01	40618591029
1997-07-01	42347851614
1997-10-01	42652007062
1998-01-01	40283518682
1998-04-01	42079189991
1998-07-01	43308244915
1998-10-01	43215399200
1999-01-01	41441848454
1999-04-01	41776796359
1999-07-01	43304004278
1999-10-01	43255307638
2000-01-01	42521381777
2000-04-01	43785828564
2000-07-01	45789980930
2000-10-01	45679488868
2001-01-01	42949128438
2001-04-01	44458338643
2001-07-01	45693295150
2001-10-01	46047498589
2002-01-01	44263349151
2002-04-01	45611990126
2002-07-01	47378386465
2002-10-01	47619957190
2003-01-01	45448865470
2003-04-01	46360535350
2003-07-01	47447459906
2003-10-01	47278449256
2004-01-01	45319007660
2004-04-01	46777206635
2004-07-01	47801437618
2004-10-01	47263755950
2005-01-01	45260098467
2005-04-01	47501762521
2005-07-01	48457488666
2005-10-01	47964492098
2006-01-01	44981353385
2006-04-01	47555665851
2006-07-01	49922183865
2006-10-01	50414423315
2007-01-01	47131817912
2007-04-01	49227266243
2007-07-01	51064687574
2007-10-01	50975882031
2008-01-01	48755455974
2008-04-01	51405218329
2008-07-01	52139873281
2008-10-01	50619153858
2009-01-01	46835133009
2009-04-01	49435719320
2009-07-01	51067329284
2009-10-01	52701370587
2010-01-01	49797422916
2010-04-01	52955206483
2010-07-01	53513427648
2010-10-01	53062476325
2011-01-01	48059787219
2011-04-01	51855207316
2011-07-01	53739029093