Year	current US$
1976	31500697.548221648
1977	44155838.49789334
1978	59374610.4585482
1979	79527403.96390048
1980	86524470.92534606
1981	80655017.2886132
1982	68947269.6025698
1983	69835401.51651059
1984	88319962.02668329
1985	104635507.16502295
1986	115730640.21051745
1987	133287331.0770613
1988	151921835.8158089
1989	134461598.20534572
1990	162115015.5217846
1991	156551382.8029995
1992	182468262.7758477
1993	248864557.4669017
1994	238218700.08884043
1995	261089148.93505302
1996	223447429.4011715
1997	245561699.11516207
1998	237367826.77686632
1999	261555302.52218828
2000	274004021.97495174
2001	280854678.167
2002	297614239.81376624
2003	311636006.2125678
2004	309142760.5204795
2005	347911622.58927363
2006	409569382.7103715
2007	456088432.304703
2008	464360174.374025
2009	417895763.865888
2010	440454309.100549
2011	465499640.66354555
2012	671684669.7428483
2013	817900669.8859394
2014	825148128.204821
2015	839204241.2265913
2016	1125002221.3216865
2017	1304412765.2990499
2018	1563647813.98653
2019	1586417748.86057
2020	748406007.234871
2021	1223124345.62683
2022	1668118586.23804
2023	1809359018.8678179