Quarter	National Currency
1980-01-01	306634380844
1980-04-01	314298523841
1980-07-01	316008859363
1980-10-01	346259281195
1981-01-01	342023382778
1981-04-01	357294086604
1981-07-01	344677375550
1981-10-01	374061701179
1982-01-01	342387110313
1982-04-01	347940890814
1982-07-01	346262151632
1982-10-01	351389377139
1983-01-01	324800325189
1983-04-01	319101103052
1983-07-01	319294632931
1983-10-01	332362447530
1984-01-01	333701499589
1984-04-01	325112566712
1984-07-01	334592726937
1984-10-01	340683530305
1985-01-01	340783869795
1985-04-01	330389870850
1985-07-01	338384751105
1985-10-01	343422434756
1986-01-01	316774245029
1986-04-01	326660329480
1986-07-01	310017805874
1986-10-01	319668104163
1987-01-01	314104547727
1987-04-01	326209631007
1987-07-01	311069995188
1987-10-01	334971434842
1988-01-01	323418312284
1988-04-01	330491816347
1988-07-01	313686591483
1988-10-01	342166518976
1989-01-01	332554762173
1989-04-01	349817269438
1989-07-01	334036969125
1989-10-01	354134607714
1990-01-01	347802087289
1990-04-01	363524552614
1990-07-01	352891292537
1990-10-01	380546980506
1991-01-01	365074401707
1991-04-01	390128510064
1991-07-01	366966075796
1991-10-01	399111965042
1992-01-01	393425909726
1992-04-01	404810979564
1992-07-01	391377379704
1992-10-01	412248988751
1993-01-01	391348021428
1993-04-01	399078145597
1993-07-01	407863259871
1993-10-01	423398476022
1994-01-01	408682469571
1994-04-01	434848088652
1994-07-01	440405878931
1994-10-01	457103336291
1995-01-01	392847085829
1995-04-01	365780029907
1995-07-01	376324340015
1995-10-01	391597499384
1996-01-01	378010463376
1996-04-01	392504329939
1996-07-01	408161407295
1996-10-01	437371062548
1997-01-01	400826495128
1997-04-01	441226706709
1997-07-01	455661419929
1997-10-01	487119141806
1998-01-01	451812620909
1998-04-01	468663643967
1998-07-01	481143141669
1998-10-01	489975207222
1999-01-01	454350507348
1999-04-01	485946537468
1999-07-01	504903390233
1999-10-01	534982092268
2000-01-01	512912824990
2000-04-01	542446260190
2000-07-01	564054037880
2000-10-01	581202690301
2001-01-01	535027804662
2001-04-01	555711512408
2001-07-01	556067605498
2001-10-01	565251960318
2002-01-01	510410088157
2002-04-01	567021264416
2002-07-01	565544486672
2002-10-01	583251164036
2003-01-01	545708639187
2003-04-01	566728500252
2003-07-01	572544123823
2003-10-01	601508210217
2004-01-01	577179042557
2004-04-01	602424189939
2004-07-01	613980183878
2004-10-01	645024790609
2005-01-01	598614682160
2005-04-01	631985327736
2005-07-01	638570107430
2005-10-01	676811753675
2006-01-01	647923956460
2006-04-01	676446531379
2006-07-01	679898728795
2006-10-01	702223648310
2007-01-01	674445326979
2007-04-01	710261988842
2007-07-01	719934460687
2007-10-01	737939451152
2008-01-01	701170024063
2008-04-01	735795254788
2008-07-01	738248641366
2008-10-01	709509629107
2009-01-01	615228824069
2009-04-01	627583206608
2009-07-01	664923608483
2009-10-01	699929059894
2010-01-01	673178072996
2010-04-01	713115722426
2010-07-01	718752951513
2010-10-01	745501460338
2011-01-01	720795980496
2011-04-01	753251814695
2011-07-01	767277318229