Year	current US$
1992	599807998.6036261
1993	582115811.2139524
1994	691087662.3376625
1995	799125000
1996	905485550.6788113
1997	857456353.560466
1998	991335057.5188843
1999	907142036.1986122
2000	893865402.5974026
2001	866641955.7729234
2002	900558159.6014498
2003	1171173235.183934
2004	1483439434.2701724
2005	1410763553.7073762
2006	1426515069.9186993
2007	1454283089.4308944
2008	1504266341.4634147
2009	2035887056.9105692
2010	2313015811.382114
2011	2576888266.6666665