Year	current US$
1970	164519999.26380816
1971	166910000.90539458
1972	166510002.29828063
1973	150960000.61370447
1974	175559998.43589962
1975	221570001.10484657
1976	230130000.7775426
1977	245540001.42589217
1978	411079996.6491759
1979	561790004.1434916
1980	732319995.2803552
1981	621950002.4020672
1982	506699994.7186558
1983	415029997.4605441
1984	357639999.01153135
1985	400520003.3243744
1986	421519999.47428703
1987	520340002.3560969
1988	782369994.9290605
1989	866299997.5755812
1990	724770001.2587011
1991	933250013.4613365
1992	871429990.846664
1993	601410002.4905056
1994	750310001.45711
1995	740830003.0454993
1996	793460008.1257522
1997	909839995.5183269
1998	967120001.0739276
1999	920159993.0357189
2000	1289440011.188388
2001	1342070003.570989
2002	1257360000.9754307
2003	1820480009.6768885
2004	2850789988.685401
2005	4349679895.594722
2006	6087680011.283611
2007	3192990024.521946
2008	3250770013.3845224
2009	3421800024.848429
2010	3689380020.512268
2011	4384719966.439531
2012	4339620033.148677
2013	5290229996.044189
2014	5496390031.76801
2015	5738529997.197912
2016	5126240020.763129
2017	5082700071.219357
2018	4714890017.917379
2019	4892720005.819574
2020	4097879966.648297
2021	2654620004.4229646
2022	1910950004.7359624