Quarter	National Currency
1988-01-01	23336810123
1988-04-01	24269742595
1988-07-01	22668017627
1988-10-01	24156718833
1989-01-01	24571557737
1989-04-01	25209605649
1989-07-01	23373427481
1989-10-01	24559369069
1990-01-01	24182093677
1990-04-01	26415088621
1990-07-01	23835383814
1990-10-01	27789147292
1991-01-01	24150172183
1991-04-01	26988521188
1991-07-01	24448048928
1991-10-01	28536403792
1992-01-01	24772216115
1992-04-01	27571337032
1992-07-01	25015529764
1992-10-01	28781288583
1993-01-01	24922057726
1993-04-01	27168212310
1993-07-01	24754759782
1993-10-01	28303468538
1994-01-01	24991223170
1994-04-01	27404124289
1994-07-01	25633212741
1994-10-01	29125487684
1995-01-01	26969420866
1995-04-01	29678775913
1995-07-01	27380192741
1995-10-01	30475222256
1996-01-01	27849504307
1996-04-01	30530556758
1996-07-01	28162362390
1996-10-01	31071962436
1997-01-01	28461248929
1997-04-01	31624820858
1997-07-01	29031891768
1997-10-01	32676035997
1998-01-01	29860804586
1998-04-01	31027064298
1998-07-01	31026196452
1998-10-01	34565556864
1999-01-01	31216274411
1999-04-01	32284858880
1999-07-01	31091931673
1999-10-01	34072645224
2000-01-01	31605316579
2000-04-01	33355751728
2000-07-01	31560042329
2000-10-01	34781833924
2001-01-01	32779357468
2001-04-01	35046632646
2001-07-01	32872650334
2001-10-01	36095999435
2002-01-01	33344847471
2002-04-01	35607409101
2002-07-01	32751196141
2002-10-01	35881462003
2003-01-01	33565110696
2003-04-01	35366384947
2003-07-01	32665343014
2003-10-01	35745976091
2004-01-01	32886256218
2004-04-01	34444877515
2004-07-01	33326035077
2004-10-01	36092375675
2005-01-01	34107399862
2005-04-01	35918297894
2005-07-01	34028568381
2005-10-01	36895059662
2006-01-01	35358048779
2006-04-01	37052980304
2006-07-01	34821130051
2006-10-01	38674942835
2007-01-01	37349383382
2007-04-01	39568643801
2007-07-01	37539839764
2007-10-01	41086658241
2008-01-01	39342276784
2008-04-01	41364657249
2008-07-01	38808715814
2008-10-01	41774653137
2009-01-01	38420397888
2009-04-01	38633577260
2009-07-01	35260434377
2009-10-01	36847229189
2010-01-01	35885042026
2010-04-01	36869259314
2010-07-01	34485685314
2010-10-01	36525548582
2011-01-01	35954307725
2011-04-01	37181233739