Year	current US$
1966	1282661316.351275
1967	1481725543.7580833
1968	1667930400
1969	1909656400
1970	2088862666.6666667
1971	2246876641.126806
1972	2781610809.7218423
1973	3448472931.6472435
1974	3650178181.7585196
1975	4258222651.4914203
1976	5058045326.716294
1977	5934191098.081024
1978	7660734776.774381
1979	9589308116.327694
1980	9610747529.232243
1981	8379667574.472864
1982	7837696341.990303
1983	8122437288.135593
1984	7975393082.671919
1985	8692886357.630894
1986	13287958966.753183
1987	15915509699.866964
1988	16607391071.826488
1989	15414978659.954584
1990	18232836182.658436
1991	18124602673.336983
1992	19673850665.164593
1993	18052240009.8706
1994	20690314435.74506
1995	24830913180.065685
1996	26128855433.11432
1997	24539900673.783028
1998	26177813843.123207
1999	26133064849.058224
2000	22737412502.62894
2001	22877858292.882202
2002	25162947547.08855
2003	30500316954.323967
2004	35833027991.52075
2005	39742834130.96767
2006	42645810519.943504
2007	48465300990.13539
2008	50218202467.58597
2009	44246662873.771194
2010	44128660446.384514
2011	47145660247.48513
2012	44698652474.99095
2013	46333043737.67178
2014	46714943637.37867
2015	40016869102.23252
2016	41396612031.411804
2017	43327319528.90827
2018	47216995209.522354
2019	44887721468.02767
2020	46614695819.17889
2021	52418812048.621994
2022	47641667469.93695
2023	46112581064.567535