Quarter	National Currency
1998-01-01	22161512379
1998-04-01	25152424352
1998-07-01	24340096595
1998-10-01	28572984218
1999-01-01	21407431284
1999-04-01	24274600425
1999-07-01	23586188239
1999-10-01	27553871151
2000-01-01	21365623242
2000-04-01	23656810354
2000-07-01	23236739260
2000-10-01	27298240490
2001-01-01	22511413584
2001-04-01	25104603969
2001-07-01	24243345334
2001-10-01	26878676882
2002-01-01	22587731278
2002-04-01	26699834938
2002-07-01	28225479784
2002-10-01	30560818800
2003-01-01	24288910398
2003-04-01	28603822212
2003-07-01	30247637462
2003-10-01	33310505608
2004-01-01	27101927696
2004-04-01	30638428929
2004-07-01	32487524755
2004-10-01	34406355195
2005-01-01	27721809994
2005-04-01	32512889586
2005-07-01	34013711433
2005-10-01	36037564701
2006-01-01	29780291929
2006-04-01	34876664414
2006-07-01	36645703446
2006-10-01	39214473193
2007-01-01	33561019426
2007-04-01	37562387137
2007-07-01	39330195150
2007-10-01	42917678220
2008-01-01	38562742257
2008-04-01	43258593656
2008-07-01	44282578877
2008-10-01	46025702239
2009-01-01	38284738912
2009-04-01	42371125121
2009-07-01	42764072586
2009-10-01	47115999933
2010-01-01	38163744741
2010-04-01	43883349309
2010-07-01	45045943106
2010-10-01	50034855942
2011-01-01	38096639912
2011-04-01	43120731445