Year	current US$
1975	8586822044.262457
1976	9387759848.801035
1977	10834495975.720734
1978	13384371178.101398
1979	14491002545.542585
1980	12880097226.04518
1981	9436271111.444674
1982	9218750830.242447
1983	10264643026.208685
1984	10997181570.43945
1985	11773535408.711082
1986	17651359310.972282
1987	23048352452.448055
1988	24505395830.83895
1989	24125909801.498444
1990	31315035439.207203
1991	30138313711.281593
1992	33866727887.305088
1993	31524343172.3219
1994	33840811605.024677
1995	42255024155.026146
1996	43032215238.441
1997	41373116041.89268
1998	41540109694.31727
1999	43240429610.22151
2000	40956918979.69225
2001	42730246654.431335
2002	45120374476.37584
2003	54960826220.27408
2004	64876025546.53747
2005	69840704637.98299
2006	78206896067.33302
2007	85415912785.301
2008	95012873165.25308
2009	72493033375.79088
2010	79299368204.23831
2011	88461114301.11652
2012	84213931952.30948
2013	94321030963.03685
2014	102380902334.0707
2015	87393700939.20226
2016	92510206867.59349
2017	99840751909.45686
2018	106623582697.70464
2019	105141143405.646
2020	108565235815.8318
2021	134320411068.02509
2022	149052119206.90805
2023	137212926529.07407