Year	current US$
1970	15600000.027567148
1971	19939999.99016523
1972	36730000.0488758
1973	46290000.26546418
1974	86109999.13699925
1975	104980000.11593103
1976	141320000.4044921
1977	241719997.8437275
1978	358979999.42675245
1979	391889996.2808937
1980	521439997.7568538
1981	488580000.3726036
1982	477020006.949082
1983	352279998.59675753
1984	409989997.6011365
1985	341279997.5089729
1986	545980002.9546022
1987	658899998.5847622
1988	729309998.9499898
1989	634049997.8326262
1990	818659996.928647
1991	545610001.03876
1992	785570001.1122972
1993	658949993.3402985
1994	674480001.6954542
1995	881799996.737391
1996	850149999.0019948
1997	772489995.4460564
1998	802599998.0587511
1999	538559996.4335563
2000	671200001.468882
2001	998149994.7365376
2002	1094779994.6907911
2003	1145830002.5705252
2004	1337710003.1767044
2005	1562600014.4649293
2006	1400629988.640547
2007	1844159981.038421
2008	1636350004.3451788
2009	1365039998.475462
2010	1547380001.2171264
2011	1019540000.7274005
2012	814339992.0146914
2013	838799997.0447272
2014	717509997.0027804
2015	578140007.238835
2016	598510000.8286536
2017	645820004.1856617
2018	713610006.740317
2019	660459998.3692168
2020	662390006.3913317
2021	592150007.0933251
2022	563840005.2934885