Year	current US$
1990	153039996.40047586
1991	9379999.995231632
1992	97649997.87695703
1993	118709998.81997703
1994	120349998.3586371
1995	137800004.48226893
1996	130899998.03155659
1997	53710000.6490946
1998	50489999.26447863
1999	16629998.743534094
2000	54969999.43256377
2001	72600001.69277191
2002	77829999.59588052
2003	117340001.00195411
2004	93610002.07066534
2005	479999.989271164
2006	-59999.9986588955
2007	189999.99761581398
2008	9999.99977648258
2009	-660000.026226044
2010	1879999.99523163