Year	National Currency
1988-01-01	18062449707.1
1989-01-01	19497141148.0
1990-01-01	21113009697.3
1991-01-01	22769293748.4
1992-01-01	24322037915.8
1993-01-01	25444595094.4
1994-01-01	26429801662.4
1995-01-01	26959075844.8
1996-01-01	27690856626.5
1997-01-01	28174785337.0
1998-01-01	29271465365.0
1999-01-01	30363175646.0
2000-01-01	31407254455.5
2001-01-01	31889715328.9
2002-01-01	32711516554.7
2003-01-01	33429773574.6
2004-01-01	34191988910.2
2005-01-01	35521661112.4
2006-01-01	37174822275.4
2007-01-01	38588913757.0
2008-01-01	40315132954.3
2009-01-01	40858918128.0
2010-01-01	41521671244.0