Year	current US$
1960	1447920792.079208
1961	935158347.870892
1962	1030769230.7692307
1963	1719230769.2307692
1964	1609564234.5661635
1965	1171167654.1511886
1966	1351453448.1964345
1967	1466822565.8526812
1968	1723146993.4392455
1969	2104727638.179794
1970	2385078623.5517097
1971	2687618375.4744024
1972	2879146599.771643
1973	3414576710.2319555
1974	4724177787.117789
1975	5334090909.090909
1976	6891528925.619835
1977	8377479338.842976
1978	10351239669.421488
1979	12409504132.231405
1980	9331901075.428133
1981	10958575436.586117
1982	10972744315.907799
1983	11080011390.292444
1984	11577022535.912369
1985	11906048136.824442
1986	12183956920.280146
1987	13772851468.116598
1988	18404351904.2452
1989	21091485098.49792
1990	21554212547.060165
1991	22564976526.320942
1992	23491681555.95306
1993	23225710963.946865
1994	26232634485.113995
1995	30191243493.0653
1996	30268257958.541534
1997	25497503808.515854
1998	16199375968.960997
1999	21143124924.136745
2000	22227802547.8411
2001	19528431799.79219
2002	20114567452.99273
2003	20832665471.76091
2004	23462280209.74415
2005	24494181180.718956
2006	26303780777.039574
2007	26775576581.42691
2008	22436617250.430492
2009	21149554008.442123
2010	24520519516.455387
2011	27687671900.853363
2012	27940462192.849934
2013	28770231487.71784
2014	30531134835.302612
2015	29378068486.519104
2016	27879571059.665268
2017	30039147629.25013
2018	30131981315.864655
2019	27544594684.46378
2020	29033968450.157585
2021	33743994610.96128
2022	27479803004.516953
2023	27329420887.86344