Year	current US$
1970	19679999.966174368
1971	20499999.988824125
1972	26990000.2665818
1973	32330000.534653716
1974	30120000.16123055
1975	41210000.27656558
1976	43510000.55670743
1977	38659999.91446738
1978	52519998.95647168
1979	46010000.52317983
1980	71839998.23033811
1981	45840000.13768676
1982	35599999.79473648
1983	32209999.749436967
1984	24859999.725595117
1985	20170000.534504652
1986	19279999.971389778
1987	32309999.484568797
1988	32320000.238716654
1989	22639999.199658632
1990	20540000.200271614
1991	21090000.62197447
1992	20150000.1847744
1993	15770000.21561981
1994	13629999.96542931
1995	8529999.779537324
2006	800000.004470348
2007	1019999.9958276746
2008	1920000.0073760746
2009	1129999.9952316275
2010	1349999.9810010192
2011	1039999.986067414
2012	1549999.9541789284
2013	2570000.0394135686
2014	3159999.9219179205
2015	6519999.977201218
2016	1729999.9482929662
2017	2389999.9447166966
2018	1950000.0476837205
2019	10120000.232011076
2020	5079999.938607217
2021	4679999.984800812
2022	1850000.0126659868