Year	National Currency
1980-01-01	16371473366.0
1981-01-01	18015272691.9
1982-01-01	19777674313.9
1983-01-01	21994479474.0
1984-01-01	23563020824.4
1985-01-01	25180025747.1
1986-01-01	28457666596.2
1987-01-01	31757536967.3
1988-01-01	34377556473.3
1989-01-01	38069034066.4
1990-01-01	43383006207.4
1991-01-01	47298868043.0
1992-01-01	51443281670.0
1993-01-01	53125233669.0
1994-01-01	54666519505.0
1995-01-01	56928813312.0
1996-01-01	60263257593.0
1997-01-01	64804654058.0
1998-01-01	67680802377.0
1999-01-01	70168212929.0
2000-01-01	73732301144.0
2001-01-01	77388625065.0
2002-01-01	79337982454.0
2003-01-01	82436132043.0
2004-01-01	84415953847.0
2005-01-01	87543803109.0
2006-01-01	91415865353.0
2007-01-01	95961399305.0
2008-01-01	99835852726.0
2009-01-01	89816236221.0
2010-01-01	87456729867.0
