Year	current US$
1966	15991781.42487782
1967	18921503.350380372
1968	16460090.336144537
1969	18244685.191496305
1970	19763503.621605795
1971	18037835.13855265
1972	19980333.10798353
1973	26392897.107327577
1974	37334614.510145664
1975	51495206.97505149
1976	46062022.588223875
1977	50729191.515639424
1978	57875483.34048505
1979	72405656.38079745
1980	103029780.07336505
1981	96172688.76528136
1982	95784687.55323191
1983	107766540.65167752
1984	90665413.33873503
1985	99014528.97551385
1986	86556333.59331036
1987	109029387.65124957
1988	134311372.43432623
1989	156436607.86728385
1990	189941809.81526572
1991	203220124.35159355
1992	218509709.44999927
1993	212861269.59930193
1994	158552463.83993104
1995	186876569.3324735
1996	184904931.24904498
1997	184290825.82667518
1998	212639014.94865218
1999	198771163.93619287
2000	201981399.9863149
2001	149998489.21009147
2002	157033586.74955723
2003	151438768.63321185
2004	198101350.56902772
2005	204546331.80886534
2006	221729529.52400124
2007	230768306.08786494
2008	226068893.10956252
2009	228340998.68261054
2010	226367642.89988482
2011	237665945.27369937
2012	280760743.77467763
2013	261079179.2007623
2014	268476270.6275198
2015	270072079.82419884
2016	236218944.85836747
2017	252666102.9546948
2018	362977228.19432163
2019	341709419.7586491
2020	174363311.78451335
2021	133283632.52710445
2022	100387472.86541244
2023	127428495.41734861