Year	current US$
1970	190100000.14305115
1971	187799998.64101404
1972	269699999.09400934
1973	301059998.8251924
1974	427359999.5970725
1975	504230002.96577793
1976	538739996.7759845
1977	474959999.32289135
1978	572370000.2133846
1979	684860002.5661288
1980	967089998.7109005
1981	978619992.7981945
1982	950379994.5563079
1983	850569997.6515023
1984	953969985.5409557
1985	939039998.7306447
1986	1263800001.8484886
1987	1580810009.1293464
1988	1734779988.395051
1989	1902369993.3867896
1990	2727339995.2594194
1991	2436080004.5803185
1992	2757339970.6687784
1993	2774799997.176974
1994	2812129976.9096084
1995	2401229961.0134215
1996	2000299982.966856
1997	1876860004.0078158
1998	1328560007.8348067
1999	1303130005.9948118
2000	1150180003.3636389
2001	888460005.1436574
2002	1834569985.1606042
2003	2770069991.6630974
2004	2718509988.7996917
2005	3603670008.352029
2006	3969690018.6780815
2007	2296649983.916431
2008	2013220011.3832953
2009	2645850067.047403
2010	2850860016.2845116
2011	3114430059.9098206
2012	2890540010.46531
2013	2368260005.623103
2014	1871649984.9837277
2015	1492770000.9718535
2016	1377090004.958212
2017	1731410001.1400876
2018	2268660036.075861
2019	2758589999.755845
2020	3304280009.726062
2021	2876070015.3503556
2022	3365170030.6236753