Year	National Currency
1988-01-01	22132000000
1989-01-01	22763000000
1990-01-01	23910000000
1991-01-01	23324000000
1992-01-01	23630000000
1993-01-01	23872000000
1994-01-01	23957000000
1995-01-01	24840000000
1996-01-01	25091000000
1997-01-01	25701000000
1998-01-01	26103000000
1999-01-01	26885000000
2000-01-01	27038000000
2001-01-01	28202000000
2002-01-01	28728000000
2003-01-01	29703000000
2004-01-01	31167000000
2005-01-01	33378000000
2006-01-01	34917000000
2007-01-01	36415000000
2008-01-01	37992000000
2009-01-01	38337000000
2010-01-01	38512000000
2011-01-01	39579000000
2012-01-01	39426000000
2013-01-01	39989000000
2014-01-01	41290000000
2015-01-01	42396000000
2016-01-01	43094000000
2017-01-01	45013000000