Year	constant 2015 US$
1960	8519610556.688947
1961	8630349573.231598
1962	8309975010.500201
1963	10529696246.482262
1964	12398377937.106739
1965	14101813800.63818
1966	13164139805.040487
1967	15704470884.950563
1968	15227085337.007843
1969	17073964303.412167
1970	20027449164.587605
1971	22097217851.256954
1972	19557827896.133358
1973	22197055505.68953
1974	25757879562.407665
1975	26289066077.310905
1976	23462554635.244923
1977	22176272333.32139
1978	21585559675.67319
1979	23644819135.56016
1980	31102840933.09802
1981	34208631155.552372
1982	27368457780.339592
1983	28274996230.91786
1984	28298994912.973133
1985	23194098789.901085
1986	20178891828.145573
1987	19375249687.555946
1988	23534785962.607372
1989	24237806178.109024
1990	21479761564.25957
1991	21334044076.486027
1992	20026508039.80112
1993	19978074519.250977
1994	24168064510.099438
1995	27607036874.27946
1996	27890735231.564095
1997	28711980460.34021
1998	29670972704.80339
1999	28742314119.985317
2000	29751974797.557217
2001	29894363856.354652
2002	32553747888.38469
2003	36278232933.740845
2004	42074280912.32906
2005	44802006987.27165
2006	50521978296.73234
2007	54881773856.42163
2008	59710413480.18838
2009	54681819888.349915
2010	55099591706.20089
2011	61564072364.45347
2012	61123563395.26726
2013	64182455118.75446
2014	62115231092.33904
2015	64603151779.90228
2016	59185652510.450264
2017	60947260591.0807
2018	60207230839.418335
2019	60087702282.04482
2020	45329641814.87132
2021	48735333253.811356
2022	55899011012.030876
2023	55989182585.53458