Year	National Currency
1980-01-01	268305000000
1981-01-01	276063000000
1982-01-01	288126000000
1983-01-01	295624000000
1984-01-01	301958000000
1985-01-01	310724000000
1986-01-01	318941000000
1987-01-01	327854000000
1988-01-01	339313000000
1989-01-01	344004000000
1990-01-01	355055000000
1991-01-01	367509000000
1992-01-01	379510000000
1993-01-01	392874000000
1994-01-01	394243000000
1995-01-01	394247000000
1996-01-01	403431000000
1997-01-01	407544000000
1998-01-01	404772000000
1999-01-01	411114000000
2000-01-01	418525000000
2001-01-01	422853000000
2002-01-01	430462000000
2003-01-01	438778000000
2004-01-01	448350000000
2005-01-01	454011000000
2006-01-01	460109000000
2007-01-01	468472000000
2008-01-01	473797000000
2009-01-01	485207000000
2010-01-01	491420000000
2011-01-01	496591000000
2012-01-01	504532000000
2013-01-01	511967000000
2014-01-01	518650000000
2015-01-01	523869000000
2016-01-01	531063000000
2017-01-01	538042000000