Quarter	National Currency
1988-01-01	51851138066
1988-04-01	51809597082
1988-07-01	48617658370
1988-10-01	54077489211
1989-01-01	54212543928
1989-04-01	54357877976
1989-07-01	48549361950
1989-10-01	56688442454
1990-01-01	55054500520
1990-04-01	53224296853
1990-07-01	50593542595
1990-10-01	52737598511
1991-01-01	54201101448
1991-04-01	55022425906
1991-07-01	49685077875
1991-10-01	54331000326
1992-01-01	54948773934
1992-04-01	53994820585
1992-07-01	51764606098
1992-10-01	56054579120
1993-01-01	54980447812
1993-04-01	50857944878
1993-07-01	48411127267
1993-10-01	55736437655
1994-01-01	55073097356
1994-04-01	56394579625
1994-07-01	52730834468
1994-10-01	63744489520
1995-01-01	63744735202
1995-04-01	59233559448
1995-07-01	54770871526
1995-10-01	63057173451
1996-01-01	61789890112
1996-04-01	57920048596
1996-07-01	55176631311
1996-10-01	61370803590
1997-01-01	63350374295
1997-04-01	64202036258
1997-07-01	59223241536
1997-10-01	66557402711
1998-01-01	66223785269
1998-04-01	59741714110
1998-07-01	58876615512
1998-10-01	69173284811
1999-01-01	64769972431
1999-04-01	64048768310
1999-07-01	59899247886
1999-10-01	70418409571
2000-01-01	69275833870
2000-04-01	65460320024
2000-07-01	62951034141
2000-10-01	71601365073
2001-01-01	68189510717
2001-04-01	64485471434
2001-07-01	65298208144
2001-10-01	70712624816
2002-01-01	65603362026
2002-04-01	65797440442
2002-07-01	63070495405
2002-10-01	68701170424
2003-01-01	66383374852
2003-04-01	61224451232
2003-07-01	60279353530
2003-10-01	69560414949
2004-01-01	66417520124
2004-04-01	63973184014
2004-07-01	62939467922
2004-10-01	69177009956
2005-01-01	66025386893
2005-04-01	65875679326
2005-07-01	62154055789
2005-10-01	68922877992
2006-01-01	69350782718
2006-04-01	66538876318
2006-07-01	62609758070
2006-10-01	68322459180
2007-01-01	67537300784
2007-04-01	63465216008
2007-07-01	64391700372
2007-10-01	70852214920
2008-01-01	67481405000
2008-04-01	68082660275
2008-07-01	65603290883
2008-10-01	68463506644
2009-01-01	63628849927
2009-04-01	58079116467
2009-07-01	57277593786
2009-10-01	61593331145
2010-01-01	61294069358
2010-04-01	60953870604
2010-07-01	59784826032
2010-10-01	63352107929
2011-01-01	60635180856
2011-04-01	63388333624