Year	current US$
1967	170028624.03719777
1968	199021107.99369478
1969	192985412.08791146
1970	208051913.6799811
1971	225575614.1574701
1972	271507532.78330076
1973	290924386.85102093
1974	248124401.5591754
1975	477736059.7518861
1976	517743237.6431915
1977	579270502.3268774
1978	637479548.282061
1979	877588175.2775472
1980	731855282.4479396
1981	655798244.6735748
1982	538843139.4213306
1983	480678986.0432484
1984	452408082.4985057
1985	514594905.3004843
1986	659492543.3324406
1987	771739951.5603695
1988	866436340.51745
1989	832590519.8472595
1990	1003509289.2732055
1991	1069893487.7911836
1992	1047245343.6515776
1993	1100444370.5112603
1994	766862597.826442
1995	1020564608.5719602
1996	1025397597.2707235
1997	969937825.6908091
1998	1009295561.9974192
1999	1223374307.1464822
2000	974383862.2077318
2001	1138086745.7210846
2002	1278509985.3660424
2003	1408405836.2418046
2004	1637120684.6692977
2005	2022850797.3424027
2006	2057312942.8710546
2007	2557287449.6067157
2008	3243753065.0361533
2009	3247185534.210628
2010	3529224435.5089145
2011	4490932987.887375
2012	4742170099.159556
2013	4867061814.163276
2014	5380641133.975672
2015	4943543928.32058
2016	5246261461.764921
2017	5751761259.987075
2018	6420770368.833642
2019	6446880948.455564
2020	6320384187.763564
2021	6889969194.219959
2022	6728543619.716786
2023	7688952686.520227