Year	current US$
1974	240000.00394880757
1975	120000.0029057264
1976	29999.999329447717
1977	19999.99955296512
1979	19999.9995529652
1980	19999.9995529652
1990	7080000.147223472
1991	23259999.37206505
1992	40399999.827146545
1994	12199999.943375591
1995	35109999.59893522
1996	30470000.118017253
1997	43399999.76754186
1998	66140000.69722533
1999	94939999.70704325
2000	69350001.33514406
2001	80480000.37670137
2002	61310000.09179119
2003	58259998.984634854
2004	35359999.47786331
2005	349999.99403953605
2006	579999.983310699
2007	1049999.95231628
2008	839999.973773956
2009	1179999.94754791
2010	509999.99046325695