Quarter	National Currency
1970-01-01	17492806666
1970-04-01	27173290983
1970-07-01	31914549955
1970-10-01	29066645863
1971-01-01	20629974338
1971-04-01	29108150926
1971-07-01	33126965822
1971-10-01	30036481307
1972-01-01	23155251744
1972-04-01	30492358543
1972-07-01	34142263481
1972-10-01	31796155037
1973-01-01	24613908769
1973-04-01	30811516546
1973-07-01	34320113797
1973-10-01	30377430055
1974-01-01	23652950701
1974-04-01	27585509329
1974-07-01	29976051943
1974-10-01	28092795332
1975-01-01	20945071209
1975-04-01	25569289414
1975-07-01	28587461336
1975-10-01	26951206421
1976-01-01	20925244176
1976-04-01	27152064742
1976-07-01	29712905272
1976-10-01	27911862125
1977-01-01	22974277957
1977-04-01	27444178544
1977-07-01	29117117573
1977-10-01	27810221032
1978-01-01	21875128089
1978-04-01	28548423603
1978-07-01	29365085200
1978-10-01	28784468244
1979-01-01	21452076817
1979-04-01	30409603053
1979-07-01	30735031724
1979-10-01	29493959528
1980-01-01	25458301165
1980-04-01	29740479698
1980-07-01	30406207126
1980-10-01	27449998157
1981-01-01	22970549790
1981-04-01	29415270755
1981-07-01	29910182872
1981-10-01	26605845476
1982-01-01	21265237184
1982-04-01	27357819907
1982-07-01	28405377637
1982-10-01	26482016534
1983-01-01	21514041563
1983-04-01	27369128857
1983-07-01	29517611194
1983-10-01	27432792205
1984-01-01	22618369802
1984-04-01	27292869357
1984-07-01	28774174908
1984-10-01	27542652262
1985-01-01	19168975699
1985-04-01	26526047886
1985-07-01	29132072422
1985-10-01	26130119845
1986-01-01	18587280626
1986-04-01	26665415935
1986-07-01	29001240064
1986-10-01	27284052089
1987-01-01	17534862453
1987-04-01	26125035092
1987-07-01	28795748112
1987-10-01	26616772650
1988-01-01	20996340867
1988-04-01	26428372658
1988-07-01	28328657799
1988-10-01	26058578299
1989-01-01	23799087776
1989-04-01	27428184813
1989-07-01	28420209202
1989-10-01	26788796694
1990-01-01	25388576221
1990-04-01	28085726197
1990-07-01	29430222977
1990-10-01	27367096935
1991-01-01	23853078309
1991-04-01	28357869502
1991-07-01	30168484086
1991-10-01	27201820763
1992-01-01	26175066111
1992-04-01	30092099730
1992-07-01	31737959106
1992-10-01	29173866609
1993-01-01	25488408790
1993-04-01	29984383731
1993-07-01	31619095748
1993-10-01	28005803016
1994-01-01	27023979837
1994-04-01	31619941993
1994-07-01	32806726580
1994-10-01	30163727570
1995-01-01	26889015937
1995-04-01	30891177882
1995-07-01	31438597933
1995-10-01	27869268343
1996-01-01	22632138701
1996-04-01	29283286218
1996-07-01	30403771054
1996-10-01	26979159975
1997-01-01	22772453650
1997-04-01	28549590042
1997-07-01	29248488233
1997-10-01	26111047815
1998-01-01	24102383811
1998-04-01	26583281921
1998-07-01	28160571064
1998-10-01	24844738564
1999-01-01	23380370560
1999-04-01	26480717318
1999-07-01	28725208194
1999-10-01	25902847279
2000-01-01	24282867300
2000-04-01	25616922537
2000-07-01	27052892516
2000-10-01	24081107486
2001-01-01	22169414748
2001-04-01	24088655195
2001-07-01	25844339115
2001-10-01	23222976906
2002-01-01	21274282841
2002-04-01	23446121953
2002-07-01	25198962282
2002-10-01	21970870034
2003-01-01	19281956552
2003-04-01	22214024641
2003-07-01	24505322647
2003-10-01	21352515055
2004-01-01	19273686346
2004-04-01	21685876753
2004-07-01	22849944002
2004-10-01	20361742164
2005-01-01	16754840774
2005-04-01	21153471396
2005-07-01	22485055441
2005-10-01	19746632390
2006-01-01	16382651974
2006-04-01	20285508104
2006-07-01	22343801648
2006-10-01	20511733206
2007-01-01	18519999282
2007-04-01	19853220924
2007-07-01	21517385598
2007-10-01	19592679813
2008-01-01	18148248806
2008-04-01	20322322922
2008-07-01	21259292256
2008-10-01	18985560630
2009-01-01	17154644290
2009-04-01	19665059662
2009-07-01	21409830702
2009-10-01	19071416901
2010-01-01	16868305589
2010-04-01	20811988407
2010-07-01	21920458790
2010-10-01	18872194932
2011-01-01	19106146622