Year	current US$
1992	477101651.6483756
1993	467872714.7556032
1994	531688311.6883117
1995	578015625
1996	693535954.1900672
1997	686490090.1401408
1998	745523116.9000521
1999	688918537.1155552
2000	706370815.5844156
2001	752371688.7431858
2002	729321680.1543237
2003	870248267.550163
2004	1109054005.43971
2005	1098424685.6616938
2006	1211161879.6747968
2007	1317974491.0569105
2008	1380188800
2009	1856695551.2195122
2010	1589515447.1544716
2011	2065001626.0162601