Year	current US$
1960	126500000
1961	106900000
1962	199300000
1963	244400000
1964	287500000
1965	180000000
1966	249300000
1967	258800000
1968	287500000
1969	321300000
1970	414895190
1971	461715440
1972	489759560
1973	632490400
1974	1023192000
1975	1160205950
1976	1152879210
1977	1297114920
1978	1395042000
1979	1746830300
1980	2303519820
1981	2192903500
1982	2036678800
1983	2246418800
1984	3479368010
1985	1555450606.05126
1986	1621540298.5814643
1987	1895596549.8998897
1988	1981547781.3804033
1989	2594465299.6845427
1990	2729569106.0725136
1991	4225814431.5337906
1992	5067032000
1993	5443488000.000001
1994	5996926315.589239
1995	6433877233.877234
1996	6887267086.211764
1997	7808997351.905668
1998	9015949073.634825
1999	9147200120.244303
2000	10646556076.714472
2001	9887410923.348816
2002	10312030141.003456
2003	9052791964.589718
2004	8974480635.31123
2005	11921949245.921976
2006	13463084948.709513
2007	15469338316.79256
2008	18038909538.46496
2009	14276280841.255219
2010	17948467832.144512
2011	20195922555.86696
2012	20513694119.48296
2013	19754030150.80715
2014	20385779512.052822
2015	20217568219.191
2016	20952466316.536892
2017	21233833497.866955
2018	24387166196.933212
2019	24851876363.513863
2020	20498001727.851517
2021	29198653713.802895
2022	36523602101.88426
2023	34583172567.91601