Year	constant 2015 US$
1960	478606368.0832107
1961	586911061.4078157
1962	642118087.7566236
1963	746858691.1061409
1964	761260524.0666994
1965	832469587.0383505
1966	946374993.1809504
1967	1028494535.668176
1968	1202262106.0862293
1969	1480697543.323696
1970	1800156383.5397234
1971	2106813594.4574764
1972	2388376702.489408
1973	2521411816.049316
1974	2529994726.6015677
1975	2599821795.501246
1976	2724855890.749732
1977	2965104649.6826873
1978	3297365119.196989
1979	3291546196.7886825
1980	3635080828.4690785
1981	3832996926.881604
1982	4341861691.4880085
1983	4760460422.2355585
1984	5018893313.694471
1985	6032113178.040843
1986	6087829360.100379
1987	6162602513.047117
1988	5792737257.469134
1989	6146964159.074793
1990	6813885403.596824
1991	7373883948.866221
1992	7563289873.256598
1993	8736166421.18088
1994	8696815958.394707
1995	9607186369.174261
1996	11175167748.622555
1997	11901296528.649105
1998	12822577418.944235
1999	13669957994.65387
2000	16174567672.2492
2001	16992926372.447407
2002	17778699107.159096
2003	17940828832.760536
2004	18122524684.959908
2005	18850471878.23905
2006	20229192806.357174
2007	20721691851.690216
2008	22033204225.9924
2009	23103304056.87997
2010	25464040877.92992
2011	25417562235.193573
2012	25636208244.68569
2013	28643354608.768394
2014	28822068263.233505
2015	31387849362.646156
2016	32560798647.10054
2017	33666393904.67878
2018	34644627498.045204
2019	35819176986.16187
2020	40540796101.32198
2021	42116560289.49139
2022	41337188369.42883
2023	42413179859.25481