Year	current US$
1965	21820000
1966	18040000
1967	18370000
1968	18490000
1969	26810000
1970	27350000
1971	39617149.9945683
1972	69415439.9913093
1973	73949350.9915427
1974	109147359.324254
1975	148591616.451689
1976	116321188.327452
1977	147130500.954145
1978	134697441.316602
1979	136484765.986635
1980	167507071.410692
1981	135079871.978374
1982	126920339.988815
1983	115818934.731141
1984	117420559.125105
1985	130836485.061511
1986	171051098.919917
1987	132169607.17275
1988	233363718.426612
1989	211593962.99314
1990	260794710.844916
1991	271425504.441488
1992	316870084.562817
1993	269456635.669976
1994	273138894.747906
1995	349032345.375843
1996	427237960.864614
1997	360286919.228444
1998	385673074.139521
1999	428687485.914594
2000	411794361.196278
2001	366162504.088454
2002	358660830.765189
2003	423272906.258186
2004	482727520.013932
2005	320891281.977879
2006	312791728.992363
2007	527605571.075917
2008	321485405.007235
2009	569135077.946111
2010	719398956.765859
2011	832228664.169776
2012	917406540.198408
2013	941036398.251963
2014	915022000.745633
2015	917899350.368621
2016	907677139.760341
2017	1115067204.4475
2018	946371681.857671
2019	1041781264.01736
2020	1079921864.94674
2021	1515996446.24939
2022	1554965055.71406
2023	1546240437.62548