Year	current US$
1965	1959999.2160003136
1966	1959999.2160003136
1967	2209316.1338072317
1968	2399998.080001536
1969	2879997.696001843
1970	2639997.8880016897
1971	2646775.7459095283
1972	4169131.231222624
1973	4847779.7168896645
1974	6658946.14939201
1975	1447596.988998263
1976	13028372.900984367
1977	13317892.29878402
1978	13317892.29878402
1979	23451071.22177186
1980	34742327.73595831
1998	335607022.106632
1999	355771651.49544865
2000	124327698.30949284
2001	198779713.91417426
2002	210489466.840052
2003	177479063.71911573
2004	184665799.739922
2005	-146711053.3159948
2006	-11622886.866059817
2007	124711833.55006501
2008	361113914.1742523
2009	48240312.093628086
2010	-1680364109.2327697
2011	-3496488946.6840053
2012	-3738621586.4759426
2013	-3680884265.279584
2014	-3445513654.0962286
2015	-2088686605.9817946
2016	-520156046.8140442
2017	-913133940.1820546
2018	-934980494.1482445
2019	-1418158387.516255
2020	-1406915734.720416
2021	-737480624.1872562
2022	-1428088426.5279584