Quarter	National Currency
1981-01-01	49156894020
1981-04-01	49805475543
1981-07-01	42338176364
1981-10-01	48436254877
1982-01-01	49043082470
1982-04-01	49113226142
1982-07-01	41802056802
1982-10-01	47178732195
1983-01-01	48284887687
1983-04-01	48382839341
1983-07-01	42675964086
1983-10-01	48523393789
1984-01-01	50234043737
1984-04-01	49973704438
1984-07-01	43876132150
1984-10-01	50168133544
1985-01-01	50944761487
1985-04-01	51806447787
1985-07-01	45833039978
1985-10-01	51380559675
1986-01-01	51811360682
1986-04-01	53177949079
1986-07-01	47086189087
1986-10-01	53069663826
1987-01-01	53156909361
1987-04-01	55769747526
1987-07-01	48702119196
1987-10-01	55840770046
1988-01-01	57593286741
1988-04-01	58549709562
1988-07-01	51931287629
1988-10-01	59363113246
1989-01-01	60368461513
1989-04-01	61603737814
1989-07-01	54206400311
1989-10-01	61530646037
1990-01-01	62282423149
1990-04-01	62178906577
1990-07-01	54893365640
1990-10-01	61314746220
1991-01-01	61590809351
1991-04-01	61594601711
1991-07-01	55271868444
1991-10-01	61756489052
1992-01-01	62326652073
1992-04-01	62632518568
1992-07-01	54412596887
1992-10-01	60314076540
1993-01-01	59711578898
1993-04-01	60489969490
1993-07-01	53058800921
1993-10-01	60316993726
1994-01-01	61285570947
1994-04-01	64344024613
1994-07-01	58148814106
1994-10-01	65212249491
1995-01-01	66714556707
1995-04-01	66660584863
1995-07-01	59759382099
1995-10-01	66810116217
1996-01-01	67999968418
1996-04-01	66472391791
1996-07-01	59491033581
1996-10-01	65566642033
1997-01-01	64717249382
1997-04-01	68008100518
1997-07-01	61150811708
1997-10-01	68324556513
1998-01-01	67237042835
1998-04-01	68575798677
1998-07-01	61486490424
1998-10-01	67388339618
1999-01-01	66424969134
1999-04-01	67726037477
1999-07-01	61859937008
1999-10-01	69312854427
2000-01-01	69815394395
2000-04-01	70667638529
2000-07-01	63517010531
2000-10-01	70634123594
2001-01-01	71396941809
2001-04-01	70165822296
2001-07-01	63021743095
2001-10-01	69489216001
2002-01-01	69693794683
2002-04-01	70090802464
2002-07-01	63813150133
2002-10-01	69602187413
2003-01-01	68462231768
2003-04-01	67238548136
2003-07-01	61792540797
2003-10-01	68378524556
2004-01-01	68602061141
2004-04-01	68833842982
2004-07-01	62368247278
2004-10-01	68591965345
2005-01-01	66911582200
2005-04-01	69054583532
2005-07-01	62910449503
2005-10-01	69052543911
2006-01-01	70666523704
2006-04-01	69717097536
2006-07-01	64259667114
2006-10-01	71704792755
2007-01-01	72414801606
2007-04-01	72019950555
2007-07-01	65783000904
2007-10-01	71331442775
2008-01-01	71982397418
2008-04-01	71717848079
2008-07-01	63730740367
2008-10-01	64432122651
2009-01-01	58061486453
2009-04-01	57261282054
2009-07-01	54861553542
2009-10-01	59227759629
2010-01-01	60166803295
2010-04-01	61497877432
2010-07-01	57164088567
2010-10-01	61657476967
2011-01-01	60800361718
2011-04-01	62649693914