Year	current US$
1960	172100000
1961	152100000
1962	196700000
1963	195000000
1964	202000000
1965	144800000
1966	160800000
1967	187100000
1968	199500000
1969	227400000
1970	266692194.1
1971	300134133
1972	422847716
1973	529005316.6
1974	749535909.4000001
1975	1039406496.9000001
1976	880982316
1977	966710293.2
1978	882809470
1979	1211190560
1980	1375636561
1981	1634265437.6000001
1982	1359153859.5
1983	1565486936.6999998
1984	2519773063.6
1985	1319814444.992752
1986	1404388029.8850029
1987	1487383601.256568
1988	1853151083.2607908
1989	2050889905.362776
1990	2165302159.454799
1991	3937453795.623206
1992	4271216000
1993	4760104000
1994	5302644573.338046
1995	5860800310.800311
1996	6363901907.43132
1997	7050603812.48759
1998	7435712074.811922
1999	7743619441.937601
2000	8628023506.90525
2001	8164580327.964321
2002	8337710063.136317
2003	9022076949.267962
2004	9185099134.122889
2005	10136190144.586329
2006	10691550324.196356
2007	11766045683.70593
2008	11504543541.943913
2009	10149752806.81853
2010	12213202600.278122
2011	14035647012.011919
2012	14917449840.986721
2013	15775318534.114403
2014	16896693029.130207
2015	16909888897.001675
2016	18100511576.781433
2017	18945253597.40843
2018	20149518936.510452
2019	20518136086.856895
2020	14425179542.836737
2021	20500491675.12756
2022	25049444739.84875
2023	25671810041.739674