Year	current US$
1960	896201641.2636364
1961	1070476071.2380954
1962	1330342606.2381854
1963	1323049889.5807643
1964	1447214639.6185524
1965	1452392325.150459
1966	1631216095.7933004
1967	1665096640.3314917
1968	1829356591.1867363
1969	2094621054.7690878
1970	2329116010.7288527
1971	2657545642.313048
1972	2766262417.6625867
1973	4557827343.318166
1974	4790168366.772038
1975	1545401519.4432573
1976	2405052962.858526
1977	3036732871.9534554
1978	3581322671.875354
1979	4631759546.900187
1980	6223083508.717949
1981	7606199525.897436
1982	3790693583.338643
1983	4249393786.4063916
1984	4516274531.4749775
1985	3888345542.6955614
1986	3376484526.1201086
1987	3895708986.737846
1988	4702927811.132341
1989	5399086072.519913
1990	6134482361.754017
1991	7219683955.359803
1992	8724494196.374763
1993	9498320840.805037
1994	10965788669.424463
1995	14211486443.832531
1996	11966072584.129059
1997	12758783801.394112
1998	11820955538.94792
1999	11097298254.810184
2000	11901787568.02538
2001	11406708086.705727
2002	11090248877.880346
2003	11622097467.554668
2004	14090229815.78081
2005	15677131021.20177
2006	17974579913.9707
2007	18356787326.771736
2008	17942698361.768677
2009	17626405029.33064
2010	21460230705.308144
2011	24909634454.236446
2012	26242482318.195496
2013	27697982795.027767
2014	25749656419.348248
2015	25212084680.29756
2016	24201225174.466045
2017	25298063772.115074
2018	28414792949.725662
2019	24959652635.21916
2020	22854348337.557117
2021	26899004535.70814
2022	28619566508.47503
2023	30889595029.18035