Quarter	National Currency
1988-01-01	17225742078
1988-04-01	18742242130
1988-07-01	19336184626
1988-10-01	18513472713
1989-01-01	16548216659
1989-04-01	18540022974
1989-07-01	18037697768
1989-10-01	18117561376
1990-01-01	15148089227
1990-04-01	16389054845
1990-07-01	16179385469
1990-10-01	15975521553
1991-01-01	13460561931
1991-04-01	15433814393
1991-07-01	16240651875
1991-10-01	15506492732
1992-01-01	13680116889
1992-04-01	15171760856
1992-07-01	16324167423
1992-10-01	15706027814
1993-01-01	12395847248
1993-04-01	13451086685
1993-07-01	14084760250
1993-10-01	13694904469
1994-01-01	12517278397
1994-04-01	14523300782
1994-07-01	14794343638
1994-10-01	15184167245
1995-01-01	13300475413
1995-04-01	15041997828
1995-07-01	15782112641
1995-10-01	15822399964
1996-01-01	12895025238
1996-04-01	15600797982
1996-07-01	16839421396
1996-10-01	17704721754
1997-01-01	13328334421
1997-04-01	15400454725
1997-07-01	15959128411
1997-10-01	16691767998
1998-01-01	15069648200
1998-04-01	16058624712
1998-07-01	17676885382
1998-10-01	18070669931
1999-01-01	15542991866
1999-04-01	17618519918
1999-07-01	18862828373
1999-10-01	19265146513
2000-01-01	17240982012
2000-04-01	18313763025
2000-07-01	18123742166
2000-10-01	18296101138
2001-01-01	14943807412
2001-04-01	16723815468
2001-07-01	17608113344
2001-10-01	17827673107
2002-01-01	15321697338
2002-04-01	16967743106
2002-07-01	16928081136
2002-10-01	17167769130
2003-01-01	15582926795
2003-04-01	16946585545
2003-07-01	17369319357
2003-10-01	18436817301
2004-01-01	15724707682
2004-04-01	17168114045
2004-07-01	17467843026
2004-10-01	18052809908
2005-01-01	15675044775
2005-04-01	17852364424
2005-07-01	18218077643
2005-10-01	19152513158
2006-01-01	16044606823
2006-04-01	19023240206
2006-07-01	20705684341
2006-10-01	19348279623
2007-01-01	17620967423
2007-04-01	18410371357
2007-07-01	18619311564
2007-10-01	18611598970
2008-01-01	16625622774
2008-04-01	17561395251
2008-07-01	17557015547
2008-10-01	17118707418
2009-01-01	15338140294
2009-04-01	15459319741
2009-07-01	15042079709
2009-10-01	14313802028
2010-01-01	12387697563
2010-04-01	13580150059
2010-07-01	14169277997
2010-10-01	14438710290
2011-01-01	13020565724
2011-04-01	14320232389