Year	current US$
1970	154667204.51795077
1971	179702022.28642178
1972	225761158.4639355
1973	297264541.50279444
1974	368540803.64540184
1975	471079302.402106
1976	509491118.077325
1977	607854811.4800225
1978	745606506.9809146
1979	890513208.5855806
1980	1014764795.1441579
1981	888791829.6392872
1982	764110895.2851845
1983	720959368.8362919
1984	688894861.7704552
1985	727859229.567226
1986	1039243272.5302511
1987	1367869259.8595355
1988	1472166758.0910587
1989	1528467444.7174447
1990	1990356108.160309
1991	2086509155.3455403
1992	2434840652.446675
1993	2483626399.2537313
1994	2682449963.829274
1995	3274261083.743842
1996	3355826710.09772
1997	3078940009.0211997
1998	3075841298.066237
1999	3282279186.960239
2000	3077416054.9051046
2001	3279397670.4110274
2002	3773528487.9517713
2003	4856346435.504697
2004	5742080727.560246
2005	6246977854.65525
2006	6510056403.409403
2007	7443477374.39218
2008	8526075346.737498
2009	8758889098.11679
2010	8873827685.73335
2011	9899038720.340487
2012	9745995732.468752
2013	10660958890.594933
2014	11044172430.203882
2015	9592329200.310932
2016	9752010132.169285
2017	10658095675.935312
2018	11930663792.564697
2019	12048416058.133314
2020	13614083279.123774
2021	14953208329.263325
2022	14400564386.1985
2023	16284653767.302248