Year	current US$
1970	123205108933.33333
1971	143713763917.6942
1972	192458500840.2807
1973	260703325047.2853
1974	297820187936.6275
1975	343862398325.4011
1976	386921971596.93475
1977	477185029916.9491
1978	668234260533.9152
1979	705942747490.189
1980	742730465800.5969
1981	814236962887.6582
1982	771822093355.1794
1983	851961398112.1772
1984	892028334157.8167
1985	936784331743.9143
1986	1383111064693.8816
1987	1683274392878.7488
1988	2001360106810.9124
1989	1984194473356.8948
1990	2032095585061.381
1991	2309787857619.554
1992	2565334899839.1646
1993	3000150182827.358
1994	3373095791123.5737
1995	3761198219001.569
1996	3327988556625.3076
1997	3050631080519.279
1998	2814129756396.4175
1999	3259750954288.945
2000	3488680514635.9453
2001	3134526849169.21
2002	3046675120426.197
2003	3287239667568.0454
2004	3545239525662.4736
2005	3505028207682.579
2006	3341916073441.5425
2007	3318927250570.047
2008	3768158708198.0854
2009	4070151683069.6987
2010	4380992795899.971
2011	4806097268216.693
2012	4869640083758.495
2013	4065242317146.242
2014	3797999260301.204
2015	3350968358065.594
2016	3720672027547.2573
2017	3650076538704.889
2018	3747307426477.4004
2019	3812889403569.023
2020	3792824016905.284
2021	3765970993587.0127
2022	3284785614019.563