Year	current US$
1970	14890000.021085141
1971	11070000.076666472
1972	13320000.18283726
1973	25539999.784901753
1974	30850000.05364418
1975	39750000.42654574
1976	30269999.895244844
1977	47320000.36723917
1978	74200001.01998448
1979	98719999.78274114
1980	90899999.17894608
1981	86820001.1011213
1982	70089999.55467878
1983	84150000.93169504
1984	77580000.28505912
1985	94309999.95209286
1986	113299999.58351251
1987	179010000.8361043
1988	160830000.19192687
1989	179320001.56119466
1990	202699996.79923064
1991	209819998.7150728
1992	201699997.11215502
1993	230730000.73246655
1994	249250001.6093253
1995	275920001.71355903
1996	318270002.08571553
1997	310369996.28692853
1998	334260003.93740827
1999	332489998.6777454
2000	312279998.5874445
2001	301070000.27224404
2002	281589999.8508393
2003	250940003.88681886
2004	320909998.8453091
2005	348690001.3126433
2006	322009992.44116235
2007	374349993.5138972
2008	439509999.0535529
2009	414699998.24091804
2010	563909997.1242248
2011	444559995.0570614
2012	405870001.2192132
2013	340099996.36746943
2014	345290005.38587564
2015	240189999.11099666
2016	241790003.12834984
2017	298740002.1795182
2018	316270001.05381
2019	297779998.70292854
2020	221089999.8936802
2021	286860002.2532047
2022	287239996.9883262