Year	current US$
1966	496431333.6277055
1967	525393760.6591777
1968	566697816.1091824
1969	575004583.4799312
1970	589592700.2857302
1971	628696670.76069
1972	694148956.4209406
1973	814843437.1857101
1974	853311315.2578638
1975	1020137207.8480781
1976	983850645.7334923
1977	1058189057.8651999
1978	1192606727.0833795
1979	1628471487.0548527
1995	1672779305.4771407
1996	2346470928.809087
1997	2030089589.604792
1998	2096916033.9922073
1999	1980828228.7319324
2000	2239148296.2359953
2001	2769547617.0312433
2002	2686708336.866759
2003	3179879995.849273
2004	2544753583.8323984
2005	3012394221.477822
2006	3356304804.7145076
2007	4095272652.114196
2008	5120988414.697431
2009	4521447558.73448
2010	4866982896.241537
2011	5675962083.187765
2012	5900050816.58035
2013	6398237044.349899
2014	6363220338.457973
2015	5748477383.991122
2016	6044064766.60327
2017	6726417863.297508
2018	6706557328.949163
2019	7024602416.670917
2020	6577012081.970819
2021	7210679282.181927
2022	7204547647.844326
2023	8808347884.378674