Year	current US$
1970	1393544516.438685
1971	2351384765.1496716
1972	199028471.52847153
1973	-4007070063.6942673
1974	-9350668536.699392
1975	-3438900442.477876
1976	-1884327044.0251572
1977	2714946799.2325134
1978	5467091083.413232
1979	2950006353.2401524
1980	14017848013.014175
1981	16845269292.604502
1982	11285466457.02306
1983	6136077004.699106
1984	1166687948.9225857
1985	6959366016.427105
1986	-1912777777.7777777
1987	-4902216048.373918
1988	-27468694414.799004
1989	-31454960732.984295
1990	-17379332386.363636
1991	-1420876543.2098768
1992	-5409350649.35065
1993	-892751949.6100781
1994	3076426385.062749
1995	7601388669.717531
1996	6794071762.870515
1997	8813032089.063522
1998	-7891685988.737992
1999	-17228603785.795177
2000	-20021183234.982597
2001	-28497193032.96387
2002	-42123800959.23261
2003	-43688163265.30612
2004	-55867813987.55035
2005	-54365454545.454544
2006	-51194112235.51058
2007	-59993997599.03961
2008	-49409926470.588234
2009	-29950147998.13055
2010	-38755872189.16932
2011	-21049736289.74745
2012	-26768944957.13209
2013	-39552226423.57029
2014	-59528116451.77083
2015	-44259720573.26679
2016	-50977914005.68962
2017	-35939390766.14502
2018	-39694142045.89521
2019	-39793470661.30173
2020	16441034563.508638
2021	-4838632402.375135
2022	-82371328318.73187
2023	-41485874356.87631