Year	current US$
1980	65200000
1981	74500000
1982	76600000
1983	76700000
1984	84500000
1985	91100000
1986	96600000
1987	111200000
1988	127900000
1989	150100000
1990	183800000
1991	188069668.292683
1992	222261371.807001
1993	216373321.167883
1994	276649827.437446
2006	777109375
2007	1803881343.75
2008	1969750757.8125
2009	1712197742.1875
2010	2007435765.625
2011	2442203732.36543
2012	2485947776.73644
2013	2907893887.43191
2014	3299197712.67327
2015	3145104891.87378
2016	3147553740.14211
2017	3290067777.99441