Year	current US$
1971	1475938050.88205
1972	1748322051.35719
1973	1985349080.22501
1974	2375504311.73821
1975	2583554612.50321
1976	2722220422.08249
1977	3517372973.27415
1978	4184090045.64027
1979	4921715107.69442
1980	5774189773.42491
1981	5449770398.56692
1982	4960802661.99415
1983	4794859977.50727
1984	5025661687.35361
1985	5026670511.02746
1986	5899263678.95188
1987	6492439550.85621
1988	6768372835.43512
1989	6732438497.62838
1990	6781798979.61746
1991	6373386118.77852
1992	6369805457.96266
1993	4261397897.90458
1994	5417739517.06399
1995	6794384847.79909
1996	9379989358.37161
1997	10393388497.6436
1998	11248659951.8668
1999	10333451501.6753
2000	10218507139.2695
2001	10483520032.3101
2002	10529010072.0672
2003	11677824740.18
2004	12835298967.7744
2005	15255693577.105
2006	21467793606.1373
2007	26440733990.4834
2008	29937452332.0839
2009	30934525298.9673
2010	33602347934.9694
2011	35405122400.725
2012	42444026300.4405
2013	45843438028.3098
2014	50508231487.6127
2015	52755240541.7926
2016	62816973523.6982
2017	68347108989.9325
2018	77713133606.492
2019	85831083413.107
2020	85842420676.3748
2021	95240841982.8691