Year	current US$
1970	1120000.0047683707
1971	1499999.9944120636
1972	2239999.983459711
1973	1750000.027939677
1974	1949999.988079071
1975	3209999.971091741
1976	3569999.9332427955
1977	2469999.9615550046
1978	3209999.985992908
1979	3890000.0266730855
1980	5209999.859333031
1981	7099999.934434887
1982	4530000.016093256
1983	3769999.913871291
1984	2760000.0016391273
1985	2699999.988079071
1986	3669999.9347329144
1987	5109999.98450279
1988	7849999.994039537
1989	7269999.9064207105
1990	5150000.050663951
1991	5390000.015497204
1992	4070000.022649763
1993	3479999.96319413
1994	3849999.979138374
1995	3710000.0232458096
1996	2079999.99448657
1997	2050000.000745058
1998	2009999.958798288
1999	2500000.0186264496
2000	2380000.039935111
2001	1950000.038370485
2002	1189999.9901652343
2003	829999.9833107004
2004	1789999.961853032
2005	2699999.988079074
2006	3609999.954700473
2007	2909999.907016756
2008	2729999.989271164
2009	4260000.020265582
2010	4300000.071525578
2011	3589999.9774992503
2012	2942483.442979215
2013	2208219.9268043055
2014	2500422.153621913
2015	2961890.4433445996
2016	3827881.6342353798
2017	3153270.020706256
2018	1953803.4852594135
2019	2435402.0953178387
2020	2610845.98302841
2021	3005752.099212262
2022	4345600.23248196