Year	current US$
1974	61577176.041037336
1975	68697815.56350249
1976	78332177.36096117
1977	102120031.38507015
1978	97566221.73690863
1979	149956060.6981101
1980	58633158.03311914
1981	-41981537.72698455
1982	167619944.01876828
1983	89736581.24002895
1984	79009679.00520109
1985	27546411.891333453
1986	55279538.4942204
1987	68087779.42929083
1988	12482903.966862567
1989	67816644.01782925
1990	189888766.31540167
1991	213672003.78361598
1992	162329939.93138996
1993	220298077.35886535
1994	231818518.04182744
1995	344908046.0727454
1996	359926025.7245855
1997	367189294.7526646
1998	387869665.1742493
1999	458075704.047286
2000	446471460.98798025
2001	486834837.0911735
2002	570987981.1468734
2003	608017590.8360128
2004	820635835.8630421
2005	800658200.0058641
2006	876792524.3466656
2007	1147358399.7940516
2008	1237340024.131575
2009	1115499945.7455044
2010	1085814759.6412618
2011	1296634615.4181721
2012	1507778682.0246034
2013	2038300243.042057
2014	2471211617.9351506
2015	1578630299.7044065
2016	2057136093.7692022
2017	2209980737.473887
2018	2800652792.549595
2019	3125594254.661557
2020	3342974098.394908
2021	4139482790.667987